Discount must be applied before payment. You can discount by a percentage, price or preset discount.
You could manage a discount by a certain percentage or price.
You may select the Preset discount to view the available types of discounts from the existing discount settings of the items.
For item discounts, please refer to Order Details.
Tips/Gratitude must be applied before payment as well.
Tips will be calculated based on the subtotal before the discount.
Select More Functions.
Select Tips Gratitude.
Tips/Gratitude could be in percentage or price.