Calculate percentage of X, quick & simple.
Let's take a quick example here:
You have a Target coupon of $3900 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 = (3900 x 89) / 100
Amount Saved = 347100 / 100
Amount Saved = $3471 (answer).
In other words, a 89% discount for a purchase with an original price of $3900 equals $3471 (Amount Saved), so you'll end up paying 429.