Calculate percentage of X, quick & simple.
Let's take a quick example here:
You have a Target coupon of $147 and you need to know how much will you save on your purchase if the discount is 80 percent.
Solution:
Amount Saved = Original Price x Discount in Percent / 100
Amount Saved = (147 x 80) / 100
Amount Saved = 11760 / 100
Amount Saved = $117.6 (answer).
In other words, a 80% discount for a purchase with an original price of $147 equals $117.6 (Amount Saved), so you'll end up paying 29.4.