Discount Calculator
Calculate discounted prices, savings amounts, and percentage off for shopping deals and promotions.
Input Parameters
Results
Stacking Discounts
When multiple discounts are applied, they are typically calculated sequentially, not additively. A 20% off then 10% off is not 30% off — it's actually 28% off (100% × 0.80 × 0.90 = 72% of original price).
What is the Discount Calculator?
The Discount Calculator allows shoppers to quickly determine the final sale price of an item after a percentage markdown is applied. It is perfect for Black Friday shopping and clearance events.
How It Works (Formula)
The calculator executes a negative percentage change. It converts the discount percentage into a decimal, multiplies it by the original price to find the total "savings" amount, and subtracts those savings from the original price tag.
$$ \text{Final Price} = \text{Original Price} \times \left(1 - \frac{\text{Discount \%}}{100}\right) $$
The algebraic algorithm for retail markdowns.
How to Use It
Enter the original price of the item. Enter the discount percentage (e.g., 20% off). The tool will output the exact amount of money you saved, and the final price you will pay at the register.