Calculate percentage of X, quick & simple.
Let's take a quick example here:
You have a Target coupon of $23 and you need to know how much will you save on your purchase if the discount is 15 percent.
Solution:
Amount Saved = Original Price x Discount in Percent / 100
Amount Saved = (23 x 15) / 100
Amount Saved = 345 / 100
Amount Saved = $3.45 (answer).
In other words, a 15% discount for a purchase with an original price of $23 equals $3.45 (Amount Saved), so you'll end up paying 19.55.