To modify a Retail Discount:
From the Make Sale window, right click the line item for a retail discount and select Edit.

Select a Type from the drop down list.
Enter a Discount value.
Select a Reason from the drop down list.
Click Save.
To modify a Retail Discount:
From the Make Sale window, right click the line item for a retail discount and select Edit.

Select a Type from the drop down list.
Enter a Discount value.
Select a Reason from the drop down list.
Click Save.