Here is how you can add discounts:
Step 1: Click on Menu on upper left corner of the screen
Step 2: Click on Business Settings
Step 3: Click on Discount Settings
Step 4: Click on '+ Add New Discount'
Step 5: Enter discount name and discount value
Note: Click on 'Default Add To Bill' checkbox to add discounts automatically to the bill.
->Click on 'Percentage(%)' checkbox to add discount value in Percentage(%)
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