Discount Calculator

This Discount Calculator provides a quick way to explore discount. Use realistic figures and read the result in the context of the decision you are making.

$
%
%
You pay
$90.00
You save$30.00
Price before tax$90.00
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How it works

The saving is the original price multiplied by the discount rate: Saving = Price × (Discount% ÷ 100). The sale price is the original price minus the saving. If a tax rate is added, tax is applied to the discounted price to give the final total.

How to use the Discount Calculator

Enter the values requested by the tool and start with one realistic example. Read the result together with its unit or label, then change one input at a time if you want to compare options. Keeping a note of the original figures makes the calculation easier to check later.

Use the estimate as a practical guide and check the original bill, product information or terms when an exact figure matters.

Frequently Asked Questions

How do I calculate a percentage off?
Multiply the original price by the discount percentage divided by 100 to get the saving, then subtract it from the original price.
Does the calculator include sales tax?
Yes, optionally. Enter a tax rate and it is applied to the discounted price so you see the real amount due at checkout.
Can I stack two discounts?
Stacked discounts apply one after another, not added together. A 20% then 10% off is 0.8 × 0.9 = 0.72 of the price, a 28% total reduction.