Calculate percentage of X, quick & simple.
Let's take a quick example here:
You have a Target coupon of $15 and you need to know how much will you save on your purchase if the discount is 23 percent.
Solution:
Amount Saved = Original Price x Discount in Percent / 100
Amount Saved = (15 x 23) / 100
Amount Saved = 345 / 100
Amount Saved = $3.45 (answer).
In other words, a 23% discount for a purchase with an original price of $15 equals $3.45 (Amount Saved), so you'll end up paying 11.55.