Calculate percentage of X, quick & simple.
Let's take a quick example here:
You have a Target coupon of $6559 and you need to know how much will you save on your purchase if the discount is 21 percent.
Solution:
Amount Saved = Original Price x Discount in Percent / 100
Amount Saved = (6559 x 21) / 100
Amount Saved = 137739 / 100
Amount Saved = $1377.39 (answer).
In other words, a 21% discount for a purchase with an original price of $6559 equals $1377.39 (Amount Saved), so you'll end up paying 5181.61.