Calculate percentage of X, quick & simple.
Let's take a quick example here:
You have a Target coupon of $420 and you need to know how much will you save on your purchase if the discount is 36 percent.
Solution:
Amount Saved = Original Price x Discount in Percent / 100
Amount Saved = (420 x 36) / 100
Amount Saved = 15120 / 100
Amount Saved = $151.2 (answer).
In other words, a 36% discount for a purchase with an original price of $420 equals $151.2 (Amount Saved), so you'll end up paying 268.8.