Accounts Receivable departments often need to model or show discounts on invoices. This help article explains some of the ways to model this and what things you should take into consideration.
In this article we consider a discount ....a discount is different than a write-off or a credit memo. If you are writing off non-payment, see adfasdfadf. If you are trying to refund money from a previous invoice, see Creating Credit Memos.
Negative Milestone
Negative Soft Cost
Negative Expense