Calculate percentage of X, quick & simple.
Let's take a quick example here:
You have a Target coupon of $561 and you need to know how much will you save on your purchase if the discount is 81 percent.
Solution:
Amount Saved = Original Price x Discount in Percent / 100
Amount Saved = (561 x 81) / 100
Amount Saved = 45441 / 100
Amount Saved = $454.41 (answer).
In other words, a 81% discount for a purchase with an original price of $561 equals $454.41 (Amount Saved), so you'll end up paying 106.59.