Overview
A discount is a reduction from the original price, usually shown as a percentage. This calculator finds the final price and the amount saved, and it also handles stacked discounts such as 20% off followed by an extra 10%.
Formula
Sale price = original price × (1 − discount rate ÷ 100).
How it works
Enter the original price
Type the price before any discount.
Enter the discount rate
Add a second discount only if it applies to the price after the first discount.
Read the final price
You will also see the amount saved and the effective discount rate.
Worked examples
Example 1: 25% off
A $200 item at 25% off costs $150, so you save $50.
Example 2: stacked discounts
A $200 item at 20% off plus an extra 10% costs 200 × 0.8 × 0.9 = $144, an effective 28% discount.
Frequently asked questions
Is 20% off then 10% off the same as 30% off?
No. The second discount applies to the already-discounted price, so the effective discount is 28%, not 30%.
How do I find the original price from the sale price?
Divide the sale price by (1 − discount ÷ 100). Example: $80 after 20% off means 80 ÷ 0.8 = $100.
Is tax added before or after the discount?
It depends on the jurisdiction, but often the discount is applied first and tax is calculated on the final price. Check your invoice.
What is the difference between a discount and a markdown?
They are often used interchangeably. A discount may be temporary or promotional, while a markdown may be a permanent price reduction.
This calculator is for educational and informational purposes only and is not a substitute for professional advice.