Hi Mehta,
What is exact requirement on variance part?
The simple definition is:
Actual cost = Standard cost + Variance.
To balance the actual cost we calculate variance and transfer it to FI and COPA as part of month end process. You can calculate variance with the order status either DLV or TECO.
KO88 is used to calculate variance on single order and CO88 is used to calculate variance on plant level.
BR, Srinivas Salpala