Discount & Sale Price Calculator
Calculate the sale price and how much you save with percentage discounts, fixed amount discounts, or multiple discounts. Perfect for shopping and retail.
How to Calculate Discounts and Sale Prices
Whether you're shopping for a deal or running a sale, understanding how to calculate discounts is essential. The sale price is what you pay after the discount, and the discount is the amount you save[reference:3].
Percentage Discounts
To calculate a percentage discount: Discount Amount = Original Price × (Discount Rate ÷ 100). Then Sale Price = Original Price – Discount Amount[reference:4]. For example, 25% off $100 = $100 - ($100 × 0.25) = $75.
Fixed Amount Discounts
A fixed amount discount is simple: Sale Price = Original Price – Fixed Discount Amount. For example, $20 off $100 = $100 - $20 = $80.
Multiple (Stacked) Discounts
When you have multiple discounts, apply them sequentially. For example, 20% off then an additional 10% off: first apply 20% to get the intermediate price, then apply 10% to that new price. This is different from a single 30% discount (which would give a lower price). Always apply discounts in the order they are offered.
Why Understanding Discounts Matters
Knowing how to calculate discounts helps you make smarter purchasing decisions, compare deals effectively, and avoid marketing tricks. A "50% off" sale might sound great, but always calculate the final price to see if it's truly a good deal.
Frequently Asked Questions
To calculate a percentage discount: multiply the original price by the discount percentage (as a decimal), then subtract that amount from the original price. For example, 20% off $100 = $100 - ($100 × 0.20) = $80.
The formula for sale price is: Sale Price = Original Price – Discount Amount. For a percentage discount: Sale Price = Original Price × (1 – Discount Rate).
Simply subtract the fixed discount amount from the original price. For example, $50 off $200 = $200 - $50 = $150.
Apply discounts sequentially. For example, 20% off then an additional 10% off: first apply 20% to get the intermediate price, then apply 10% to that new price. This is different from a single 30% discount.
The discount is the amount you save (the reduction from the original price). The sale price is the final price you pay after the discount is applied.