Calculate percentage of X, quick & simple.
Let's take a quick example here:
You have a Target coupon of $815 and you need to know how much will you save on your purchase if the discount is 39 percent.
Solution:
Amount Saved = Original Price x Discount in Percent / 100
Amount Saved = (815 x 39) / 100
Amount Saved = 31785 / 100
Amount Saved = $317.85 (answer).
In other words, a 39% discount for a purchase with an original price of $815 equals $317.85 (Amount Saved), so you'll end up paying 497.15.