I Need to calculate 10% Vat on only on 80% of total Invoice value. How Can I?
I.e My Total Invoice value is 100 rs. Here I want to calculate VAT only on 80 rs.
Normally My Tax Amount will be 10 rs which is on 100 rs.
But here I want it as 8 rs on 80 rs.
I can’t give 20% as discount.
Please help me in solving this.