Discount Calculator – Calculate Sale Prices & Savings
Calculate original price, sale price, stacked discounts, sales tax, and tip.
About the Discount Calculator – Calculate Sale Prices & Savings
The Discount Calculator helps shoppers evaluate savings, stacked promotional offers, sales tax, and gratuity amounts.
Discount Formulas
Single Discount: Final Price = Original Price × (1 - Discount %)
Sequential Stacked Discounts: Price_N = Price_(N-1) × (1 - Discount_N %)
Tax Amount = Discounted Price × Tax %
Worked Step-by-Step Examples
Example: $100 item with 20% discount + 10% stacked sequential discount
First discount (20%): $100 - $20 = $80 Second discount (10%): $80 - $8 = $72 Total Saved = $28 | Final Price = $72.00
Frequently Asked Questions
Sequential discounts apply each percentage sequentially to the remaining balance. Combined discounts sum percentages together.