Calculate percentage of X, quick & simple.
Let's take a quick example here:
You have a Target coupon of $225 and you need to know how much will you save on your purchase if the discount is 91 percent.
Solution:
Amount Saved = Original Price x Discount in Percent / 100
Amount Saved = (225 x 91) / 100
Amount Saved = 20475 / 100
Amount Saved = $204.75 (answer).
In other words, a 91% discount for a purchase with an original price of $225 equals $204.75 (Amount Saved), so you'll end up paying 20.25.