Quick Answer: Calculate sale price, discount amount, percent off, and savings from either a percentage discount or a fixed amount off.
How This Calculator Works
A discount reduces the original price of a good or service. Percent-off discounts multiply the original price by a discount rate, while fixed-amount discounts subtract a specific currency amount.
Worked Scenario: Scenario: Checking a Sale Price
A product costs $59.99 and is marked 15% off.
Scenario Inputs
- Original price: $59.99
- Discount: 15%
- Discount type: Percent off
Outcome: The discount saves about 9.00, so the sale price is about 50.99 before taxes or fees.
Formula and Methodology
Percent discount amount = Original price * Discount rate
Fixed discount amount = Fixed amount off
Price after discount = Original price - Discount amount
Discount percent = Discount amount / Original price * 100
Variables
- Original price: Price before applying the discount
- Discount amount: Currency amount saved
- Discount percent: Savings as a percentage of the original price
Assumptions
- Sales tax, VAT, shipping, service fees, tips, and other charges are excluded unless included in the entered price.
- Percent-off discounts are capped at 100% in the calculation.
- Fixed-amount discounts are capped at the original price so the sale price does not go below zero.
Limitations
- Stacked discounts, coupons, loyalty credits, rebates, and buy-one-get-one offers can require different rules.
- The calculator does not determine whether a promotion is valid or compare prices across stores.
- Final checkout totals can differ when taxes or fees are calculated after discount application.
Practical FAQs
How do I calculate 15% off?
Multiply the original price by 15%, then subtract that amount from the original price. For 59.99, 15% is about 9.00, leaving a price of about $50.99.
What is the difference between percent off and fixed amount off?
Percent off scales with the original price. Fixed amount off subtracts the same currency amount regardless of the original price.
Does this include sales tax?
No. This calculator focuses on the discount. Use the Sales Tax Calculator to estimate tax after the discounted price is known.