Chapter 10 Process & Operation Costing
Chapter 10 Process & Operation Costing
Chapter 10 Process & Operation Costing
Such type of costing method is useful in the manufacturing of products like steel, paper,
medicines, soaps, chemicals, rubber, vegetable oil, paints, varnish etc. where the production
process is continuous and the output of one process becomes the input of the following process
till completion.
Raw Finished
Material Process-I Process-II Process-III Goods
Basic Features
Industries, where process costing can be applied, have normally one or more of the following
features:
1. Each plant or factory is divided into a number of processes, cost centres or departments,
4. The end product usually is of like units not distinguishable from one another.
5. It is not possible to trace the identity of any particular lot of output to any lot of input
materials. For example, in the sugar industry, it is impossible to trace any lot of sugar bags
Materials: Materials and supplies which are required for each process are drawn against Material
Requisitions Notes from the stores. Each process for which the materials are used, are debited
with the cost of materials consumed on the basis of the information received from the Cost
Accounting department.
The finished product of first process generally become the raw materials of second process;
under such a situation the account of second process is debited with the cost of transfer from
the first process and also with the cost of any additional material used in process.
Employee Cost (Labour): Each process account should be debited with the labour cost or wages
Sometimes the wages paid are apportioned over the different processes after selecting
appropriate basis.
Direct expenses: Each process account should be debited with direct expenses like depreciation,
Production Overheads: Expenses like rent, power expenses, lighting bills, gas and water bills etc.
The suitable way out to recover them is to apportion them over different processes by using
suitable basis.
Usually, these expenses are estimated in advance and the processes debited with these expenses
1. Open a process A/c for every process and debit all the expenses.
5. Balancing figure of Process A/c will be Abnormal loss or Gain Valued at Normal cost.
Topper’s Classes Process & Operation Costing | 10.3
Process I A/c
xxx xxx
Problem.3.1
From the following data, prepare process accounts indicating the cost of each process and the
total cost. The total units that pass through each process were 240 for the period.
Indirect expenses amounting to ₹ 85,000 may be apportioned on the basis of wages. There was
Solution
Dr. Process- I Account Cr.
Process-II)
” Indirect 63 15,000
expenses*
3,200 7,68,000 3,200 7,68,000
* Apportionment of Indirect expenses among Process-I, Process-II and Process-III Total Wages
Apportionment to:
85,000
Process- I = × ₹ 80,000 = ₹ 20,000;
3,40,000
85,000
Process- II = × ₹ 2,00,000 = ₹ 50,000 and
3,40,000
85,000
Process- III = × ₹ 60,000 = ₹ 15,000
3,40,000
Topper’s Classes Process & Operation Costing | 10.5
CONCEPT 4: TREATMENT OF NORMAL, ABNORMAL LOSS AND ABNORMAL GAIN
Normal and Abnormal Loss
Loss of material is inherent during processing operation. The loss of material under different
processes arises due to reasons like evaporation or a change in the moisture content etc.
Process loss is defined as the loss of material arising during the course of a processing operation
and is equal to the difference between the input quantity of the material and its output.
Normal Process Loss: It is also known as normal wastage. It is defined as the loss of material
which is inherent in the nature of work. Such a loss can be reasonably anticipated from the nature
It is unavoidable because of nature of the material or the process. It also includes units
Treatment in Cost Accounts: The cost of normal process loss in practice is absorbed by good
units produced under the process. The amount realised by the sale of normal process loss units
₹ 40,000, Wages ₹30,000 and manufacturing overheads were ₹ 27,000. Normal loss anticipated
was 5% of input. 4,750 units of output were produced and transferred-out from Process-I. There
were no opening stocks. Input raw material issued to Process I were 5,000 units. Scrap has no
realisable value.
You are required to PREPARE Process- I account, value of normal loss and units transferred to
Process-II.
Solution Process- I Account
Particulars Units (₹) Particulars Units (₹)
To Wages - 30,000
₹ 40,000, Wages ₹30,000 and manufacturing overheads were ₹ 27,000. Normal loss anticipated
was 5% of input. 4,750 units of output were produced and transferred-out from Process-I.
There were no opening stocks. Input raw material issued to Process I were 5,000 units. Scrap
You are required to PREPARE Process- I account, value of normal loss and units transferred to
Process-II.
To Wages - 30,000
loss (Normal process loss). This type of loss may occur due to the carelessness of workers, a bad
Such a loss cannot obviously be estimated in advance. But it can be kept under control by taking
suitable measures.
Topper’s Classes Process & Operation Costing | 10.7
Treatment in Cost Accounts: The cost of an abnormal process loss unit is equal to the cost of a
good unit. The total cost of abnormal process loss is credited to the process account from which
it arises. Cost of abnormal process loss is not treated as a part of the cost of the product. In
fact, the total cost of abnormal process loss is debited to costing profit and loss account.
To Process I xx xx By Bank xx xx
xx xx xx xx
₹ 40,000, Wages ₹30,000 and manufacturing overheads were ₹ 27,000. Normal loss anticipated
was 5% of input. 4,550 units of output were produced and transferred-out from Process-I.
There were no opening stocks. Input raw material issued to Process I were 5,000 units. Scrap
You are required to PREPARE Process- I account, value of normal loss, abnormal loss and units
transferred to Process-II.
So, abnormal gain may be defined as an unexpected gain in production under the normal conditions.
This arises due to over- estimation of process loss, improvements in work efficiency of workers,
Treatment in Cost Accounts: The process account under which abnormal gain arises is debited
with the abnormal gain and credited to abnormal gain account which will be closed by transferring
to the Costing Profit and Loss account. The cost of abnormal gain is computed on the basis of
normal production.
To P/L A/c xx
xx xx xx xx
It is transferred to P/L A/c as profit but after adjusting Loss of Non – realisation of Normal
₹ 40,000, Wages ₹ 30,000 and manufacturing overheads were ₹ 27,000. Normal loss anticipated
was 5% of input. 4,850 units of output were produced and transferred-out from Process-I.
There were no opening stocks. Input raw material issued to Process I were 5,000 units. Scrap
You are required to PREPARE Process- I account, value of normal loss, abnormal loss/ gain and
To Wages - 30,000
Value of Normal loss = Scrap realisable value less cost to sale = 250 units × ₹2 = ₹500
(Even though the actual loss is less than the expected loss (Normal loss), value of the normal loss
(The Costing P&L Account is credited only for actual gain amount)
Problem.6.2
A product passes through three processes.
The output of each process is treated as the raw material of the next process to which it is
transferred and output of the third process is transferred to finished stock.
Process I (₹) Process II (₹) Process III (₹)
Material issued 40,000 20,000 10,000
Labour 6,000 4,000 1,000
Manufacturing overhead 10,000 10,000 15,000
Topper’s Classes Process & Operation Costing | 10.10
10,000 units have been issued to the Process-I and after processing, the output of each process
is as under:
Process Output Normal Loss
Process-I 9,750 units 2%
No stock of materials or of work-in-process was left at the end. CALCULATE the cost of the
Solution
Dr. Process-I Account Cr.
Particulars Units Total Particulars Units Total
(₹) (₹)
To Material 10,000 40,000 By Normal Loss A/c 200 -
(₹ 9.6862 × 9,400
” Manufacturing OH - 10,000
(₹ 9.6862 × 138
units)
(₹) (₹)
9,400 units)
13.8358 × 8,000
units)
” Manufacturing OH - 15,000
Problem.6.3
RST Limited processes product Z through two distinct processes-Process-I and Process-II. On
completion, it is transferred to finished stock. From the following information for the current
6,000 units of finished goods were sold at a profit of 15% on cost. Assume that there was no
units) × ₹ 12.5
(₹ 96.7947 × 7,050
units)
(₹ 96. 7947 × 75
units)
To Manufacturing 27,150
overhead
7,500 6,94,350 7,500 6,94,350
Cost per unit of completed units and abnormal loss:
Total Cost Realisable value from normal loss
Inputs units - Normal loss units
= 6,94,350 - 4,688
=
6,89,662
= 96.7947
7,500 units - 375 units 7,125units
Process- II A/c
× ₹ 37.5
( ₹ 140.0496 × 6,525
units)
To Manufacturing - 19,387
overhead
(₹ 140.0496 × 180)
Income Statement
9,84,802 9,84,802
Problem.6.4
Alpha Ltd. is engaged in the production of a product A which passes through 3 different process
- Process P, Process Q and Process R. The following data relating to cost and output is obtained
10,000 kg of raw material @ ₹ 5 per kg. was issued to Process P. There was no stock of material
or work in process. The entire output of each process passes directly to the next process and
finally to warehouse.
There is normal wastage, in processing, of 10%. The scrap value of wastage is ₹ 1 per kg.
Topper’s Classes Process & Operation Costing | 10.14
The output of each process transferred to next process and finally to warehouse are as under:
Process P = 9,000 kg
Process Q = 8,200 kg
Process R = 7,300 kg
The company fixes selling price of the end product in such a way so as to yield a profit of 25% on
selling price. Prepare Process P, Q and R accounts. Also calculate selling price per unit of end
To Production OH 22,500
(90,000 × 3/12)
`1,39,500
= = ₹ 15.50
9000kgs
Process- Q A/c
(₹ 31 × 100 kgs)
` 2,51,100
= = ₹ 31
8100kgs
Process- R A/c
(₹ 52 ×80kg)
+ Profit = ₹ 1,26,533.33
Sales = 5,06,133.33
Problem.6.5
A product passes through two distinct processes before completion.
Process – 1 Process – 2
Prepare:
Solution.
(i) Dr. Process – 1 Account Cr.
To Manufacturing 75,000
overheads
12,75,000 − 6,750
= = 133.5
10,000 units − 500 units
To Process – I A/c 9,000 12,01,500 Normal Loss A/c @ 145 900 1,30,500
overheads - 84,000
To Abnormal gain
22,09,500 − 1,30,500
= = 256.67
8,100 units
(Abnormal loss)
66,750 66,750
Problem.6.6
A product passes through Process-I and Process-II.
overheads were ₹ 52,500. Normal Loss anticipated was 5% of input. 9,650 units of output were
produced and transferred out from Process-I to Process II. Input raw materials issued to
(5% of 10,000)
To Manufacturing OH - 52,500
Problem.6.7
N Ltd. produces a product which passes through two processes – Process I and Process – II. The
company has provided following – information related to the Financial Year 2021-22:
Process I Process II
(35% of ₹ 1,30,000)
Problem.6.8
A product passes through two processes; Process A and Process B. The output of Process A is
Process A Process B
Input Material
Normal loss of input material (weight in kgs.) 7,800 kgs 240 kgs
There is no realisable value for normal loss. No stock of raw materials on work-in-process was
Yon are required to prepare the Process account for each Process. [Nov. 2023, 5 Marks]
• The total Production Overhead of ₹ 15,750 was recovered @ 150% of Direct wages.
• The output of each process passes to the next process and finally, 12,000 units were
Y ? 2.00
Z 5% 1.00
(i) Find out the percentage of wastage in process ‘Y’, given that the output of Process ‘Y’ is
(ii) Prepare Process accounts for all the three processes X, Y and Z. [July 2021, 10 Marks]
Topper’s Classes Process & Operation Costing | 10.22
Solution
Dr. Process-X Account Cr.
Particulars Units (₹) Particulars Units (₹)
To Material introduced 15,000 30,000 By Normal Loss A/c 900 990
” Production OH - 6,000
= Total Cost - Realisable value from normal loss/Input units – Normal loss units
Now, Total Cost - Realisable value from normal loss/Input units – Normal loss units = 4
” Production OH - 4,500
Thus to ascertain the cost of each completed unit, it is necessary to ascertain the cost of work-
Equivalent Units
Equivalent units or equivalent production units, means converting the incomplete production units
Under each process, an estimate is made of the percentage completion of work-in-process with
[Units completed]
Normal Loss - - - - - - -
Topper’s Classes Process & Operation Costing | 10.24
Abnormal loss xxx xxx xxx xxx xxx xxx xxx
2. Abnormal loss units are treated as equal to 100% completed units unless specified otherwise.
𝑇𝑜𝑡𝑎𝑙 𝑐𝑜𝑠𝑡 – 𝑁𝑜𝑟𝑚𝑎𝑙 𝐿𝑜𝑠𝑠
Step 2: Cost per unit = 𝐸𝑞𝑢𝑖𝑣𝑎𝑙𝑒𝑛𝑡𝑠 𝑝𝑟𝑜𝑑𝑢𝑐𝑡𝑖𝑜𝑛
Problem.9.1
An English willow company who manufactures cricket bat buys wood as its direct material. The
Forming department processes the cricket bats and the cricket bats are then transferred to the
The Forming department began manufacturing 10,000 initial bats during the month of December
Total ₹ 50,000
A total of 8,000 cricket bats were completed and transferred to the Finishing department, the
rest 2,000 were still in the Forming process at the end of the month.
All of the forming departments direct material were placed, but, on average, only 25% of the
CALCULATE:
(iii) Cost of closing work in process (WIP) and finished products. [T.1]
Topper’s Classes Process & Operation Costing | 10.25
Solution
(i) Calculation of equivalent units of production:
Equivalent Units
Output Particulars Units Material Conversion cost
% Units % Units
Statement of Evaluation
Problem.9.2
A company produces a component, which passes through two processes. During the month
of April, materials for 40,000 components were put into Process I of which 30,000 were
completed and transferred to Process II. Those not transferred to Process II were 100%
complete as to materials cost and 50% complete as to labour and overheads cost. The
Of those transferred to Process II, 28,000 units were completed and transferred to
finished goods stores. There was a normal loss with no salvage value of 200 units in Process
II. There were 1,800 units, remained unfinished in the process with 100% complete as to
No further process material costs occur after introduction at the first process until the
Topper’s Classes Process & Operation Costing | 10.26
end of the second process, when protective packing is applied to the completed components.
The process and packing costs incurred at the end of the Process II were:
Required
(i) Prepare Statement of Equivalent Production, Cost Per unit and Process I A/c
(ii) Prepare State of Equivalent Production. Cost per Unit and Process II A/c. [T.5]
Solution
Step 1: Process I A/c
Equivalent Units
Output Particulars Units Material Labour & Overheads
% Units % Units
Finished output 30,000 100 30,000 100 30,000
Statement of Evaluation
Equivalent Units
% Units % Units
Statement of Evaluation
& Completed
process (WIP) and freshly introduced materials/inputs. The cost to complete the opening WIP
The cost of opening WIP is added to cost incurred on completing the incomplete (WIP) units into
complete one.
The total cost of units completed and transferred is calculated by adding opening WIP cost to
cost on freshly introduced inputs. In this method the closing stock of work in process is valued
at current cost.
FIFO
Working Notes:
- Cost / Unit
= Total Current period cost – Normal Loss real / Total Equivalent units
- Working Note
Problem.11.1
Opening work-in-process 1,000 units (60% complete);
Cost ₹ 1,10,000.
Using FIFO method, compute equivalent production and cost per equivalent unit. Also,
(Transferred to next
process)
units)}
(Balancing figure)
Statement of Evaluation
Particulars Equivalent Cost per EU Amount
period
(The difference in total amount may arise due to rounding off error)
Problem.11.2
Hill manufacturing Ltd uses process costing to manufacture Water density sensors for hydro
sector. The following information pertains to operations for the month of May.
Particulars Units
The beginning work in progress was 60% complete for materials and 20% complete for conversion
costs. The ending inventory was 90% complete for material and 40% complete for conversion
Beginning inventory costs are material ₹ 27,670, direct labour ₹ 30,120 and factory overhead
₹12,720. Cost incurred during May are material used, ₹ 4,79,000, direct labour ₹ 1,82,880,
CALCULATE:
(i) Using the FIFO method, the equivalent units of production for material.
Solution
(i) Calculation of equivalent units of production:
Equivalent Units
Input Details Units Output Units Material Conversion cost
Particulars % Units % Units
Beginning WIP 16,000 From beginning 16,000 40 6,400 80 12,800
WIP
output
Problem.11.3
Following details have been provided by M/S AR Enterprises:
(i) Opening works-in-progress - 3000 units (70% complete)
(vi) Normal loss is estimated at 12% of total input (including units in process in the
beginning).
Scraps realise ₹ 50 per unit. Scraps are 100% complete. Using FIFO method, compute:
(Transferred to next
process)
(Balancing figure)
Less:
(₹ 50 × 2400 units)
` 31,92,720
Cost per Equivalent unit = = ₹ 212
15060units
aggregated and the aggregate cost is divided by output in terms of completed units.
The equivalent production in this case consists of work-load already contained in opening work-
The main difference between FIFO method and average method is that units of opening work in
process and their cost are taken in full under average method while under FIFO method only the
(ii) Add opening WIP previous year cost in current year cost element wise.
Cost / unit: Opening WIP previous year + Current Year WIP / Eq. units
Note:
Problem.12.1
Refer to information provided in Problem 11.1 above and solve this by Weighted Average Method.
[S.M.5]
units units
(%) Equivalent
units
process)
Statement of Evaluation
(i) Units Completed and transferred to next process 9,000 209.18 18,82,620
Problem.12.3
Following information is available regarding Process I for the month of February:
Production Record:
Units in process as on 1st February 4,000
(All materials used, 25% complete for labour and overhead)
New units introduced 16,000
Units completed 14,000
Units in process as on 28.2.2020 6,000
(All materials used, 33 - 1/3% complete for labour and overhead)
Cost Records
Work-in-process as on 1st February ₹
Materials 6,000
Labour 1,000
Overhead 1,000
8,000
Cost during the month
Materials 25,600
Labour 15,000
Overhead 15,000
55,600
Presuming that average method of inventory is used, prepare:
(i) Statement of equivalent production.
Solution
Process-I Cost Account
To Labour - 15,000
To Overhead - 15,000
transferred
introduced
Problem.12.4
Following details are related to the work done in process-I by XYZ Company during the month of
March:
Materials 80,000
Labour 15,000
Overheads 45,000
Topper’s Classes Process & Operation Costing | 10.36
Materials introduced in process-I (38,000 units) 14,80,000
Overheads 10,77,000
Degree of completion:
Materials 100%
Degree of completion:
Materials 100%
(iv) Process-I Account, Normal Loss Account and Abnormal Loss Account. [T.4]
introduced
To Overheads 10,77,000
(C) = (A ÷ B)
To Process-I A/c 2,000 40,000 By Cost Ledger Control A/c 2,000 40,000
To Process-I A/c 1,000 72,000 By Cost Ledger Control A/c 1,000 20,000
Problem.12.5
‘Healthy Sweets’ is engaged in the manufacturing of jaggery. Its process involve sugarcane
crushing for juice extraction, then filtration and boiling of juice along with some chemicals and
The main process of juice extraction (Process – I) is done in conventional crusher, which is then
filtered and boiled (Process – II) in iron pots. The solidified jaggery blocks are then cut, packed
extracts only 45 litre of juice. Following information regarding Process – I has been obtained
from the manufacturing department of Healthy Sweets for the month of January:
(₹)
Opening work-in process (4,500 litre)
Sugarcane 50,000
Labour 15,000
Overheads 45,000
Overheads 6,00,000
Topper’s Classes Process & Operation Costing | 10.39
Abnormal Loss: 1,000 kg
Degree of completion:
Sugarcane 100%
Degree of completion:
Sugarcane 100%
Extracted juice transferred for filtering and boiling: 39,500 litre (Consider mass of 1 litre of
% Units % Units
Opening WIP 4,500 Completed and 39,500 100 39,500 100 39,500
transferred to
Process - II
introduced (55%* of
1,00,000)
(₹) (₹)
1. Value of units completed and transferred 11,54,032
[₹ 25,595 + ₹ 18
(difference due to
approximation)]
To Overheads 6,00,000
Problem.12.6
Following details are related to the work done in Process-I by ABC Ltd. during the month of May
2019:
(₹)
Opening work in process (3,000 units)
Materials 1,80,500
Labour 32,400
Overheads 90,000
Labour 4,50,000
Overheads 15,18,000
Degree of completion
Materials : 100%
Degree of completion
Materials : 100%
Normal Loss:
Prepare:
Solution
(i) Statement of Equivalent Production (Weighted Average method)
transferred to
Process-II
(Balancing figure)
(C) = (A ÷ B)
Overheads - 90,000
(Bal. Figure)
Problem.12.7
STG Limited is a manufacturer of Chemical ‘GK’, which is required for industrial use. The
complete production operation requires two processes. The raw material first passes
Particulars (in ₹)
loss over and above normal loss is considered to be 100% complete in material and processing.
The Company transfers 60,000 kgs. of output (Chemical G) from Process I to Process II for
producing Chemical ‘GK’. Further materials are added in Process II which yield 1.20 kg. of Chemical
The chemicals transferred to Process II for further processing are then sold as Chemical ‘GK’
for ₹ 10 per kg. Any quantity of output completed in Process I, are sold as Chemical ‘G’ @ ₹ 9 per
kg. The monthly costs incurred in Process II (other than the cost of Chemical ‘G’) are:
(i) Prepare Statement of Equivalent production and determine the cost per kg. of Chemical,
(ii) Prepare a statement showing cost of Chemical ‘G’ transferred to Process II, cost of
processing it further in Process-II. Will it be beneficial for the company over the current
(Note: You are not required to prepare Process Accounts) [May 2022, 10 Marks]
Solution
(i) Statement of Equivalent Production
quantity Cost
% Units % Units
Opening WIP 9,500 Units completed 83,000 100% 83,000 100% 83,000
(10% of 1,05,000)
(Bal. fig.)
(ii) Statement showing cost of Chemical ‘G’ transferred to Process II, cost of abnormal
(₹)
Units transferred (60,000 × 6.25) 3,75,000
84,975
Topper’s Classes Process & Operation Costing | 10.46
(iii) Calculation of Incremental Profit / Loss after further processing
In this type of organizational structure, the output of one process is transferred to the next
process not at cost but at market value or cost plus a percentage of profit.
The difference between cost and the transfer price is known as inter-process profits.
Advantages:
1. Comparison between the cost of output and its market price at the stage of completion is
facilitated.
Disadvantages:
2. The system shows profits which are not realised because of stock not sold out.
Topper’s Classes Process & Operation Costing | 10.47
Problem.13.1
A Ltd. produces product AXE which passes through two processes before it is completed and
Output of Process I is transferred to Process II at 25% profit on the transfer price. Output of
Process II is transferred to finished stock at 20% profit on the transfer price. Stock in process
is valued at prime cost. Finished stock is valued at the price at which it is received from process
II. Sales during the period are ₹ 1,40,000. Prepare Process accounts and finished goods account
showing the profit element at each stage. [S.M.6]
= ₹ 13,500
Topper’s Classes Process & Operation Costing | 10.48
Process- II Account
Particulars Total (₹) Cost Profit Particulars Total (₹) Cost Profit
(₹) (₹) (₹) (₹)
Opening stock 9,000 7,500 1,500 Finished Stock 1,12,500 75,750 36,750
A/c**
Transferred 54,000 40,500 13,500 Closing stock* 4,500 3,750 750
from Process- I
Direct 15,750 15,750 -
materials
Direct wages 11,250 11,250 -
Prime cost 90,000 75,000 15,000
Overheads 4,500 4,500 -
Total cost 94,500 79,500 15,000
Profit*** 22,500 - 22,500
1,17,000 79,500 37,500 1,17,000 79,500 37,500
75,000
* Cost of Closing Stock = × 4,500 = ₹ 3,750
90,000
Total cost - Closing stock 94,500 - 4,500
**Transfer price = = = ₹ 1,12,500
80% 80%
***Profit on transfer = 1,12,500 × 20% = ₹ 22,500
A/c
stock*
75,750
= 11,250 = ₹ 7,575
1,12,500
Topper’s Classes Process & Operation Costing | 10.49
Problem.13.2
KT Ltd. produces a product EMM which passes through two processes before it is completed and
Output of Process A is transferred to Process B at 25% profit on the transfer price and output
of Process B is transferred to finished stock at 20% on profit on the transfer price. Stock in
process is valued at prime cost. Finished stock is valued at the price at which it is received from
Process B. Sales during the period are ₹ 75,000. Prepare the Process cost accounts and Finished
stock account showing the profit element at each stage. [May 2019, 10 Marks]
19,000 19,000 -
Opening Stock 10,000 6,000 4,000 Costing P&L 75,000 44,181 30,819
Problem.13.3
MNO Ltd has provided following details:
• Opening work in progress is 10,000 units at ₹ 50,000 (Material 100%, Labour and overheads
70% complete).
• Input of materials is 55,000 units at ₹ 2, 20,000. Amount spent on Labour and Overheads is
overheads 60%.
• Closing work in progress is 12,000 units; degree of completion for material 100% and for
• Finished units transferred to next process are 43,500 units. Normal loss is 5% of total input
including opening work in progress. Scrapped units would fetch ₹ 8.50 per unit.
Solution
(i) Statement of Equivalent Production (Using FIFO method)
transferred to
Process-II
(5% of 10,000 +
55,000 units)
(9,500 – 3,250)
To Process-I A/c 6,250 29,698 By Cost Ledger Control A/c 6,250 53,125
Working Notes:
1. Computation of Cost per unit
29,698
product using different materials but with similar conversion activities. Which means conversion
activities are similar for all the product variants but materials differ significantly.
Operation Costing method is also known as Hybrid product costing system as materials costs are
accumulated by job order or batch wise but conversion costs i.e. labour and overheads costs are
accumulated by department, and process costing methods are used to assign these costs to
products.
Topper’s Classes Process & Operation Costing | 10.53
Moreover, under operation costing, conversion costs are applied to products using a
predetermined application rate. This predetermined rate is based on budgeted conversion costs.
For example, a company is manufacturing two grades of products, Product- Deluxe and Product-
Regular.
Both the products pass through a similar production process but require different quality and
quantities of raw materials. The cost of raw material is accumulated on the basis of job or batches
or units of two variants of products. But the costs for the conversion activities need not to be
identified with the product variants as both the Products requires similar activities for
conversion.
Hence, conversion activity costs are accumulated on the basis of departments or processes only.
Example of industries are ready made garments, Shoe making, jewelry etc.
Solution
Job Costing Process Costing
A Job is carried out or a product is produced by The process of producing the product has a
homogeneous.
Costs are determined for each job. Costs are compiled on time basis i.e., for
Each job is separate and independent of other Products lose their individual identity as they
Each job or order has a number and costs are The unit cost of process is an average cost for
Costs are computed when a job is completed. Costs are calculated at the end of the cost
The cost of a job may be determined by adding period. The unit cost of a process may be
all costs against the job. computed by dividing the total cost for the
that period.
Topper’s Classes Process & Operation Costing | 10.54
Problem.15.2
How will you treat normal loss, abnormal loss and abnormal gain in process costing? Explain.
[ICAI Module]
2. 200 units were introduced in a process in which 20 units is the normal loss. If the actual
3. 100 units are processed at a total cost of ₹ 160, normal loss is 10%, & scrap units are
sold @ ₹ 0.25 each. If the output is 80 units, then the value of abnormal loss is:
[ICAI Module]
(a) Absorbed by good units produced and amount realised by the sale of loss units
(d) Debited to costing profit and loss account and amount realised by the sale of loss
5. When average method is used in process costing, the opening inventory costs are:
(d) Averaged with other costs to arrive at total cost [ICAI Module]
6. Spoilage that occurs under inefficient operating conditions and is ordinarily controllable
(d) Total process cost less realizable value of normal loss less value of transferred out
goods.
(b) When the actual output is greater than the planned output
(b) The cost to complete the opening WIP and other completed units are calculated
separately.
(c) The cost of opening work-in-process and cost of the current period are aggregated
14. When compared with normal spoilage, abnormal spoilage: [ICAI Module]
(a) Arises more frequently from factors that are inherent in the manufacturing process.
production department.
15. Lean Labs develops 55mm film using a four-step process that moves progressively through
four departments. The company specializes in overnight service and has the largest drug
store chain as its primary customer. Currently, direct labor, direct materials, and overhead
are accumulated by departments. The cost accumulation system that best describes the
16. Assume 550 units were worked on during a period in which a total of 500 good units were
production costs were ₹ 2,200. The company accounts for abnormal spoilage separately on
the income statement as loss due to abnormal spoilage. Normal spoilage is not accounted
for separately. What is the cost of the good units produced? [ICAI Module]
Unit costs were: Material ₹ 2.50 and conversion costs (Labour & overheads) ₹ 6.00. The
number of units that company would transfer to its finished goods stock and the related
18. In a process 8,000 units are introduced during a period. 5% of input is normal loss. Closing
work in progress 60% complete is 1,000 units. 6,600 completed units are transferred to
(a) 9,000 units (b) 7,440 units (c) 5,400 units (d) 7,200 units.
(a) Operation Costing is the refinement of process costing, and concerned with the
(b) Process Costing is used in industries where the material has to pass through two or
20. Which of the following Statement is not true about the Normal Loss/wastage of
Materials?
(a) Normal loss is the loss of material which is inherent in the nature of work.
(b) Normal loss can be reasonably anticipated from the nature of the material, nature
of operation.
(c) Normal loss does not include units withdrawn from the process for test or sampling.
overheads were ₹27,000. Normal loss anticipated was 5% of input. 4,750 units of output
There were no opening stocks. Input of raw material issued to Process I were 5,000 units.
You are required to compute the cost of the output transferred to Process II.
(a) ₹ 97,000 (b) ₹ 96,000 (c) ₹ 96,500 (d) None of the above.
Topper’s Classes Process & Operation Costing | 10.58
22. 10,000 units of raw materials are introduced into a process at a cost of ₹17,000. Labour
cost and overheads for the process are ₹5,100 and ₹3,400 respectively. 7,500 units were
completed, of the remaining 2,500 units, on an average 40% work has been done.
23. Equivalent production of 1,000 units, 60% complete in all respects, is:
24. When Actual Loss is .......................... than the estimated loss, the difference between the
(c) Total process cost less realisable value of normal loss less value of transferred out
goods
27. In Process X of a manufacturing concern, 10,000 units are introduced during May, 2023.
The normal loss is estimated to be 4% of the input. At the end of the month 1,200 units
were lying as incomplete. The stage-wise completion of the inventory was given as under:
Material 80% complete; Labour 60% complete, and Overheads 50% complete.
You are required to prepare Statement of Equivalent production assuming that 8,300 units
(a) Equivalent Production – Material 9,000, Labour 9,170, and Overhead 9,360.
(b) Equivalent Production – Material 9,360, Labour 9,360, and Overhead 9,000.
(c) Equivalent Production – Material 9,360, Labour 9,170, and Overhead 9,000.
(d) Equivalent Production – Material 9,360, Labour 9,000, and Overhead 9,000.
Topper’s Classes Process & Operation Costing | 10.59
28. When Actual Loss is .......................... than the estimated loss, the difference between the
31. The Method of Costing applied in Biscuit Industries is ................... Costing and in Steel
32. Equivalent units represent the production of a process in terms of .................... units.
33. When 1,000 units are 60% complete in a process, it is equivalent to ............ completed units:
34. In Inter Process Profits, the output of one process is transferred from one process to
(a) Market Price, Actual Cost (b) Actual Cost, Market Price
35. In Process Costing, the abnormal loss is treated as .................... cost and written off to
36. An Input of 5,000 kgs of material introduced into the process and the expected loss is
8% and if the actual output from the process is 4,300, the abnormal loss is .................... kg:
ANSWERS
1 2 3 4 5 6 7 8 9 10
a c c c b b d d c b
11 12 13 14 15 16 17 18 19 20
c c b d d b b b c c
21 22 23 24 25 26 27 28 29 30
b d c a c c c b d a
31 32 33 34 35 36
b a b b b b