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Tuesday, May 13, 2014

Treatment of Normal and Abnormal Loss in Process Costing

When we start the production of goods through different processes, normal loss and abnormal loss will happen with this. Due to this our total cost of production will increase.
If we do not treat the normal and abnormal loss, our total cost of production will less than exact cost of production. Due to this, our sale price will not estimate correctly. So, for making good plan of selling and controlling our losses, we need to treat the normal loss and abnormal loss in process accounts.

 1. Treatment of Normal Loss in Process Accounts 

 Normal losses are those which we can not stop. These are natural wastage.

 For example, if you doing the business of timber on the basis of their weight. It is sure that after cutting of tree, weight of wood will decrease. So, this loss is normal loss. In process account’s credit side, we just show the normal loss’s units. Now, our total produced units will decrease. This will decrease our cost of production in any process. For example: If total cost of process A is Rs. 10,000. When we produce 100 units in A process, we have checked that due to natural reasons, we have just 90 units. Now, in A Process Account, we will show 100 units in debit side and 10 units of normal loss in credit side without writing its amount. Due to this our total cost of Rs. 10,000 will of 90 units. It means, cost per unit has increased from Rs. 100 per unit to Rs. 111 per unit.

 2. Treatment of Abnormal Loss in Process Accounts

 All those losses which happen due to abnormal reasons are called abnormal losses. Following are its main example.

 1. If you use bad quality raw material in the production, there is big risk of wastage in production. So, use of bad quality raw material is the reason of abnormal loss.

 2. Careless is also reason of abnormal loss. For example, due to the careless of worker, 5 units waste the products during production. So, loss of 5 units is the abnormal loss.

 3. All those losses which are not normal will be the abnormal loss. For treating the abnormal loss in the process account, we need to calculate the value of abnormal loss.

 a) When there is not any normal loss 

  Abnormal loss = Normal cost at normal production / normal output X units of abnormal loss

 b) When there is normal loss

 Abnormal loss = {Normal cost at normal production / (Total output – normal loss units)} X Units of abnormal loss. Example : In process A 100 units of raw materials were introduced at a cost of Rs. 1000. The other expenditure incurred by the process was Rs. 602 of the units introduced 10% are normally lost in the course of manufacture and they possess a scrap value of Rs. 3 each. The output of process A was only 75 units. Prepare process A account. 

                                               Process A Account 

Debit SideUnits Amount in Rs. Credit SideUnits Amount in Rs.
Raw material1001000Normal Loss10-
Other Expenses-602Sale of Scrap of normal wastage 10 units X Rs. 3 each- 30
*Abnormal Loss15262
Process B ( Output ) - balancing figure751310
10016021001602

* Calculation of Abnormal loss in units and in value 

Total input========== 100 units 
Less normal loss in units== 10 units 
--------------------------------------
Normal Output ======== 90 units 
actual output of A process = 75 units
--------------------------------------
Abnormal loss in units ==== 15 units 
==========================
 Value of Abnormal Loss 
= Cost of Total Output - scrap sale of normal loss/ Normal Output X Units of Abnormal loss 
= 1602 - 30 / 90 X 15 = Rs. 262

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