Calculate percentage of X, quick & simple.
Let's take a quick example here:
You have a Target coupon of $405 and you need to know how much will you save on your purchase if the discount is 22 percent.
Solution:
Amount Saved = Original Price x Discount in Percent / 100
Amount Saved = (405 x 22) / 100
Amount Saved = 8910 / 100
Amount Saved = $89.1 (answer).
In other words, a 22% discount for a purchase with an original price of $405 equals $89.1 (Amount Saved), so you'll end up paying 315.9.