Calculate percentage of X, quick & simple.
Let's take a quick example here:
You have a Target coupon of $1337 and you need to know how much will you save on your purchase if the discount is 40 percent.
Solution:
Amount Saved = Original Price x Discount in Percent / 100
Amount Saved = (1337 x 40) / 100
Amount Saved = 53480 / 100
Amount Saved = $534.8 (answer).
In other words, a 40% discount for a purchase with an original price of $1337 equals $534.8 (Amount Saved), so you'll end up paying 802.2.