Discount Calculator: Find the Sale Price and Discount Amount Instantly
A discount calculator answers two everyday questions: “How much money is taken off?” and “What is the final price the customer pays?” This page focuses on the discount side of pricing and shows how to keep the resulting margin under control.
Use the free Discount & Markup Calculator to obtain discount amount and final price from any original price and percentage.
Core Discount Formulas
These are implemented in the live tool. Related percentage-finding methods appear on the discount percentage calculator page. Finding the final price in more detail is covered on the selling price after discount page.
Practical Example
Original price $100, discount 20 % → Discount amount $20 → Final price $80.
If a second 10 % discount is applied to the $80, the additional reduction is $8 and the final price becomes $72 (total reduction 28 %, not 30 %).
Successive Discounts
Always apply the second (and any further) discount to the already-reduced price. The combined effect is less than the simple sum of the percentages. The calculator can be used step by step for multi-discount promotions.
Protecting Margin
After any discount, recalculate the resulting profit margin. A promotion that looks attractive on the shelf can leave margin below the level needed to cover operating costs. See the profit margin calculator and markup vs margin pages for the margin side of the decision. Broader pricing strategy is discussed on the retail pricing strategy page.
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Frequently Asked Questions
How do you calculate a discount?
Discount Amount = Original Price × Discount Percentage. Final Price = Original Price − Discount Amount. Or Final Price = Original Price × (1 − Discount %).
What is a successive discount?
Two or more discounts applied one after another. The second discount is taken on the already-reduced price, not on the original price.
Can the Discount & Markup Calculator handle discounts?
Yes. Enter the original price and discount percentage to obtain the discount amount and final sale price.
How do I find the discount percentage if I know both prices?
Discount % = (Original Price − Sale Price) ÷ Original Price × 100. See the Discount Percentage Calculator page for details.
Does a 20 % discount followed by another 20 % equal 40 % off?
No. The second 20 % is applied to the already discounted price, so the total reduction is 36 %, not 40 %.
Should I check margin after applying a discount?
Yes. A large discount can leave residual margin below your target. Always verify the resulting margin.
Final Call to Action
Calculate the discount and final price
Know the exact final price and the residual margin before you publish a discount.
Open the free Discount & Markup Calculator