The following steps explain how a cashier can give a customer a cash discount on their whole order.
After a product(s) has been ordered or added to the basket, in the Order section, select Process Order.
An Order Overview screen will be displayed showing all the products contained in an order.
By the right side, tap on Add discount.
Tap on the drop-down button by the right, select Cash.
Type the amount in cash inside the Add amount textbox using the numbers displayed.
Select CONFIRM.
The cash discount given can be seen at the bottom of the screen.