The system calculates expected closing stock:
Opening Tank Stock: 5,000 KG
+ LPG Received: 2,000 KG
- POS Sales: 1,500 KG
= Expected Closing: 5,500 KG
When the operator enters the physical dip measurement (e.g. 5,430 KG), the system flags the exact variance (e.g.,
-70 KG Stock Loss Variance) to detect leaks or theft.