Calculate percentage of X, quick & simple.
Let's take a quick example here:
You have a Target coupon of $640 and you need to know how much will you save on your purchase if the discount is 60 percent.
Solution:
Amount Saved = Original Price x Discount in Percent / 100
Amount Saved = (640 x 60) / 100
Amount Saved = 38400 / 100
Amount Saved = $384 (answer).
In other words, a 60% discount for a purchase with an original price of $640 equals $384 (Amount Saved), so you'll end up paying 256.