Calculate percentage of X, quick & simple.
Let's take a quick example here:
You have a Target coupon of $643 and you need to know how much will you save on your purchase if the discount is 52 percent.
Solution:
Amount Saved = Original Price x Discount in Percent / 100
Amount Saved = (643 x 52) / 100
Amount Saved = 33436 / 100
Amount Saved = $334.36 (answer).
In other words, a 52% discount for a purchase with an original price of $643 equals $334.36 (Amount Saved), so you'll end up paying 308.64.