Calculate percentage of X, quick & simple.
Let's take a quick example here:
You have a Target coupon of $12 and you need to know how much will you save on your purchase if the discount is 55 percent.
Solution:
Amount Saved = Original Price x Discount in Percent / 100
Amount Saved = (12 x 55) / 100
Amount Saved = 660 / 100
Amount Saved = $6.6 (answer).
In other words, a 55% discount for a purchase with an original price of $12 equals $6.6 (Amount Saved), so you'll end up paying 5.4.