If a discount or a surcharge is required to be added to the bill.

This will apply discount to the whole bill.

1) Ring up sale and press Tender

2) Select Discount/Surcharge

3) Select the Discount that is to be applied to this bill

This will only apply discount to the current items of the sale

1) Ring up a sale

2) Press Function

3) Press Discount All

4) Select the discount to apply to the current items

This will apply discount to just this item

1) Select item

2) Press on item in sales screen

3) Press Change Price

4) Select discount to be applied to just this item

This will apply discount to just the selected items

1) Select table to bill

2) Select items on the table/guest to bill

3) Press Discount

4) Select discount to be applied to these items