For a material costing 120 INR gross price, discount is 20INR, thus net price is 100 INR.
Now for some some states tax is calculated on the net price i.e. 100 INR , and for some some states it is on gross i.e 120INR. How would this configuration be done.
We can use two tax codes to pick different tax percentage value, but how do we configure on what base price the tax percent is applied i.e. on net or on gross.