Hi,

I am trying to give discount on 'tax inclusive items' at line_item level and I want to show discount amount instead of discount percentage on my invoice.

The issue i am facing is described below

Item A rate(tax inclusive) = 500 Rs.

Discount % = 10 %

Discount Amount = 50 Rs.

GST on Item A = 18%

Case 1:

Item total when Discount % is applied,

Item total = 500 - (10% of 500) = 450

Case 2:

Item total when Discount Amount is applied,

Item total = 500 - 50 = 450(Desired value)

However the actual item total i got is, Rs 441

Why discount amount is applied on tax exclusive total and discount percentage is applied on tax inclusive total.