Calculate percentage of X, quick & simple.
Let's take a quick example here:
You have a Target coupon of $302 and you need to know how much will you save on your purchase if the discount is 18 percent.
Solution:
Amount Saved = Original Price x Discount in Percent / 100
Amount Saved = (302 x 18) / 100
Amount Saved = 5436 / 100
Amount Saved = $54.36 (answer).
In other words, a 18% discount for a purchase with an original price of $302 equals $54.36 (Amount Saved), so you'll end up paying 247.64.