Discount Calculator
Find the sale price, what you save and the final cost with tax.
Example values are filled in so you can see a result. Replace them with your own.
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About the Discount Calculator
Enter the original price and the percentage off. The calculator shows the sale price, the amount you save and, if you add a tax rate and a quantity, the final total at the till.
It is useful for comparing deals, such as a bigger percent off a higher price against a smaller percent off a lower price.
Shops show discounts in different ways: a percentage off, a fixed amount off or a bundle price. Turning each into a final price makes them easy to compare. Enter the tag price and the percentage, and the page shows the price after the discount, the saving per item and the total for the quantity you choose. If your region adds sales tax at the till, enter the rate so the final figure matches what you will actually pay.
How to use it
Enter the original price. The tag price before the discount.
Enter the discount percent. The percentage off.
Add tax and quantity. Optional. Leave tax at zero if prices include it.
Worked example: 60 item, 25 percent off, 8 percent tax
Sale price: $45.00, you save: $15.00 With 8% tax: $48.60
Tips for good results
- Compare final prices, not percentages.
- Stacked discounts do not add. Apply them one after the other.
- Check if the shop adds tax after the discount.
Common mistakes
- Adding two discounts together instead of applying them in turn.
- Forgetting that tax is added after the discount.
Common questions
How is the sale price calculated?
Original price x (1 - discount / 100).
Is tax added before or after?
After the discount in this tool.
Can I use it for quantities?
Yes. Enter a quantity to see the total for several items.
Does it save my numbers?
No.
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Results follow standard formulas and are rounded for display.
