Calculate percentage of X, quick & simple.
Let's take a quick example here:
You have a Target coupon of $563 and you need to know how much will you save on your purchase if the discount is 66 percent.
Solution:
Amount Saved = Original Price x Discount in Percent / 100
Amount Saved = (563 x 66) / 100
Amount Saved = 37158 / 100
Amount Saved = $371.58 (answer).
In other words, a 66% discount for a purchase with an original price of $563 equals $371.58 (Amount Saved), so you'll end up paying 191.42.