How to use the Discount Calculator
- Enter the original listed price and the advertised percentage discount.
- Add a sales-tax rate if tax applies to the discounted price in your location.
- Review the savings, reduced price, tax, and final price rather than relying on the sale label alone.
How the calculation works
Discounted price = original price × (1 − discount ÷ 100)Savings equal original price times the discount rate. If tax is entered, it is applied to the reduced price and then added to produce the final amount.
Example calculation
A $120 item discounted by 25% saves $30 and costs $90 before tax. With 8% sales tax on the reduced price, tax is $7.20 and the final price is $97.20.
How to interpret the result
The savings figure compares the original price with the pre-tax discounted price. The final price may be closer to the original once taxes or fees are included.
Notes and assumptions
- The percentage discount is applied once to the original price.
- Tax is calculated after the discount, which is common but not universal.
- Shipping, fixed fees, coupons, and stacked discounts are excluded.
Common questions
Discount Calculator questions
How do I find 30% off a price?
Multiply the price by 0.70. A 30% reduction means you pay 70% of the original price.
Can a discount be more than 100%?
No for a normal sale price, so this calculator limits the discount to 100%.
Is tax always calculated after a discount?
Rules vary by jurisdiction and promotion type. Check the receipt or local tax rule when accuracy is important.