There is a variety of discount types that you can offer using coupons, such as percentage discounts and fixed product discounts.
With our Advanced Coupons plugin, you will have more flexibility by setting up the maximum amount of money that is discounted. You will find this option when you choose “Percentage discount” from the General tab.
For example, if you set the discount to 10% for all products and the cap value to $20, the customers can only get up to a $20 discount even though the subtotal is worth more than $200.