Calculate percentage of X, quick & simple.
Let's take a quick example here:
You have a Target coupon of $623 and you need to know how much will you save on your purchase if the discount is 13 percent.
Solution:
Amount Saved = Original Price x Discount in Percent / 100
Amount Saved = (623 x 13) / 100
Amount Saved = 8099 / 100
Amount Saved = $80.99 (answer).
In other words, a 13% discount for a purchase with an original price of $623 equals $80.99 (Amount Saved), so you'll end up paying 542.01.