Calculate percentage of X, quick & simple.
Let's take a quick example here:
You have a Target coupon of $136 and you need to know how much will you save on your purchase if the discount is 87 percent.
Solution:
Amount Saved = Original Price x Discount in Percent / 100
Amount Saved = (136 x 87) / 100
Amount Saved = 11832 / 100
Amount Saved = $118.32 (answer).
In other words, a 87% discount for a purchase with an original price of $136 equals $118.32 (Amount Saved), so you'll end up paying 17.68.