Calculate percentage of X, quick & simple.
Let's take a quick example here:
You have a Target coupon of $645 and you need to know how much will you save on your purchase if the discount is 34 percent.
Solution:
Amount Saved = Original Price x Discount in Percent / 100
Amount Saved = (645 x 34) / 100
Amount Saved = 21930 / 100
Amount Saved = $219.3 (answer).
In other words, a 34% discount for a purchase with an original price of $645 equals $219.3 (Amount Saved), so you'll end up paying 425.7.