Answer: Enter your values and the Discount Calculator returns the exact result instantly — formula, worked example, and a plain-English explanation are included below the tool.
A discount calculator applies percentage markdowns to a price, returning the sale price and the amount saved — including stacked discounts.
Calculate sale price after discount
This discount calculator takes an original price and a discount percentage and returns the final price you pay plus the dollar amount saved. It is useful for evaluating sales tags, coupon offers, and stacked promotions, where mental math is easy to get wrong under time pressure.
The math is simple: savings = original price × discount %, and final price = original price − savings. A $60 jacket at 25% off saves $15 and costs $45. Percentages compose with multiplication, not addition — two successive 20% discounts equal a single 36% discount, not 40%.
Retail sales cluster around familiar percentages: 10%, 20%, 25%, 30%, and 50% off. Because 10% is a one-decimal-place shift, you can estimate any of these quickly: find 10% by moving the decimal point, then scale. The table below shows the final price of a $80 item and a $250 item at the most common discount rates.
Watch the order of operations when discounts stack with tax. In most US states the discounted price is what gets taxed, so apply the percentage discount first, then add sales tax to the result. Combining a store discount with a coupon usually means applying them sequentially — each percentage applies to the previous balance, which is why 20% off plus another 20% off is 36% off in total.
A useful habit is translating discounts into dollars before deciding. On a $250 item, the difference between 30% and 40% off is $25 — meaningful, but smaller than the sticker language suggests. Anchoring on the dollar figure, and comparing against the item's typical street price rather than its list price, guards against inflated "was" pricing.
Also remember that percentage-off framing can hide fees: shipping, restocking, or minimum-purchase requirements can eat the savings. Computing the true final out-the-door price — discount first, then tax and fees — is the only apples-to-apples comparison between offers.
| Discount | $80 item: you pay | You save | $250 item: you pay | You save |
|---|---|---|---|---|
| 10% off | $72.00 | $8.00 | $225.00 | $25.00 |
| 20% off | $64.00 | $16.00 | $200.00 | $50.00 |
| 25% off | $60.00 | $20.00 | $187.50 | $62.50 |
| 30% off | $56.00 | $24.00 | $175.00 | $75.00 |
| 50% off | $40.00 | $40.00 | $125.00 | $125.00 |
A 20% discount and a 20% markup do not cancel. If an item is marked up 20% to $120 and then discounted 20%, the final price is $96 — not the original $100 — because the second percentage applies to a larger base. This asymmetry is why stores can advertise "same as list" pricing while still coming out ahead on round-trip percentage moves.
It also matters when comparing a discount against a rebate. A 10% instant discount is worth exactly 10% of the pre-tax price, while a $10 mail-in rebate is worth $10 regardless of price but arrives later and requires effort. On a $100 item they are equivalent on paper, but the instant discount is guaranteed money while the rebate has conditions attached.
Finally, keep the base in mind whenever you read a percentage. "Save up to 50%" may apply to a handful of clearance items, with the rest discounted far less. The calculator on this page removes the ambiguity: enter the actual numbers for the item you want and see the real final price.
How do I calculate a discount price?
Multiply the original price by the discount percentage (written as a decimal) to get the savings, then subtract that from the original price. For example, 25% off $80: savings = 80 × 0.25 = $20, final price = $60.
Do two 20% discounts equal 40% off?
No. Each discount applies to the reduced balance, so they multiply: 0.80 × 0.80 = 0.64, meaning you pay 64% — a 36% total discount. Percentage discounts stack multiplicatively, never additively.
Does sales tax apply before or after the discount?
After. In jurisdictions with percentage-based sales tax, the tax is computed on the discounted price you actually pay, not the original price. Apply the discount first, then add tax to the result.
How do I find the original price from the sale price?
If you paid P after a d% discount, the original price was P / (1 − d/100). For example, if you paid $60 after a 25% discount, the original was 60 / 0.75 = $80.
What is the difference between a percentage discount and a fixed-dollar coupon?
A percentage discount scales with price — the more expensive the item, the bigger the saving — while a fixed coupon saves a constant amount. On cheap items a $10 coupon usually beats 20% off; on expensive items the percentage wins. The break-even price is easy to compute: a $10 coupon and a 20% discount are worth the same on a $50 item, so anything cheaper favors the dollar coupon and anything pricier favors the percentage. This page's coupon field handles the combination, applying the percentage first and then subtracting the fixed amount.
How do I calculate a buy-one-get-one-half-off deal?
BOGO-half deals split into a per-item average price. Two $40 items with the second at half price cost $40 + $20 = $60 total, which is $30 per item — equivalent to 25% off each. In general, second item half off equals 25% off the pair, and second item free equals 50% off the pair, provided you actually want both items.