Create a specific Discount if you are going to use it multiple times (e.g. running a promotion or offering discount to a specific group) to track it properly in the Reports section.
1. Click on the box below Discount.
2. Click on the arrow on the left of No Discount to open the Discount list.
3. Choose the appropriate Discount from the dropdown menu of either preset discounts or “Manager Discount”.
4. For Manager Discount key-in the amount to be deducted from the Invoice.
5. Click Confirm.
6. Ensure the proper amount is now showing in Total.
If you wish to add a discount to an existing Invoice, see "Making an Adjustment on an Invoice Total"