Calculate percentage of X, quick & simple.
Let's take a quick example here:
You have a Target coupon of $588 and you need to know how much will you save on your purchase if the discount is 78 percent.
Solution:
Amount Saved = Original Price x Discount in Percent / 100
Amount Saved = (588 x 78) / 100
Amount Saved = 45864 / 100
Amount Saved = $458.64 (answer).
In other words, a 78% discount for a purchase with an original price of $588 equals $458.64 (Amount Saved), so you'll end up paying 129.36.