Today I came to know a new calculation from Dominick Pizza, 100 Feet Road, Bathinda, and that is :-
Qty Rate Amount
1 79 89
1 69 75
and then again:-
Qty Rate Amount
1 79 89
1 69 75
SubTotal :- 148 (instead of 164)
First I though rate difference was due to CGST/SGST, but that is written separately on the bill, so its was also not included in that
What a calculation