How to use this calculator
Enter the requested values, review any options that affect the calculation, and select Calculate. The main answer appears beside the form, with supporting details below it.
How the calculation works
Discount amount = original price × discount rate. Tax, when entered, is applied to the discounted price.
Example
A 20% discount on $100 saves $20 and produces an $80 price before tax.
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Frequently asked questions
Is tax calculated before or after the discount?
Tax is calculated on the price after the discount. Tax rules can differ by location.