Calculate percentage of X, quick & simple.
Let's take a quick example here:
You have a Target coupon of $29 and you need to know how much will you save on your purchase if the discount is 89 percent.
Solution:
Amount Saved = Original Price x Discount in Percent / 100
Amount Saved = (29 x 89) / 100
Amount Saved = 2581 / 100
Amount Saved = $25.81 (answer).
In other words, a 89% discount for a purchase with an original price of $29 equals $25.81 (Amount Saved), so you'll end up paying 3.19.