add Discount To Subtotal
public final Unit addDiscountToSubtotal(Integer discountValue, AmountOrPercent type, TaxRateSymbol taxRate, String description)
send discount to already printed automaticGrantedToPosition
Parameters
discount Value
discount value in currency subunit
type
set if discount is amount or percent
description
description to discount
normal Or Correction
set normal discount or correction
tax Rate
tax rate to grant discount