Calculate percentage of X, quick & simple.
Let's take a quick example here:
You have a Target coupon of $172 and you need to know how much will you save on your purchase if the discount is 50 percent.
Solution:
Amount Saved = Original Price x Discount in Percent / 100
Amount Saved = (172 x 50) / 100
Amount Saved = 8600 / 100
Amount Saved = $86 (answer).
In other words, a 50% discount for a purchase with an original price of $172 equals $86 (Amount Saved), so you'll end up paying 86.