Calculate percentage of X, quick & simple.
Let's take a quick example here:
You have a Target coupon of $329 and you need to know how much will you save on your purchase if the discount is 45 percent.
Solution:
Amount Saved = Original Price x Discount in Percent / 100
Amount Saved = (329 x 45) / 100
Amount Saved = 14805 / 100
Amount Saved = $148.05 (answer).
In other words, a 45% discount for a purchase with an original price of $329 equals $148.05 (Amount Saved), so you'll end up paying 180.95.