Calculate percentage of X, quick & simple.
Let's take a quick example here:
You have a Target coupon of $915 and you need to know how much will you save on your purchase if the discount is 89 percent.
Solution:
Amount Saved = Original Price x Discount in Percent / 100
Amount Saved = (915 x 89) / 100
Amount Saved = 81435 / 100
Amount Saved = $814.35 (answer).
In other words, a 89% discount for a purchase with an original price of $915 equals $814.35 (Amount Saved), so you'll end up paying 100.65.