Everyday Math

Discount Calculator

$
%
Sale price
$60.00
You save
$20.00

Find the sale price and how much you save from an original price and a discount percentage.

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How to use this calculator

  1. Enter the original price.
  2. Enter the discount percentage advertised.
  3. Read the sale price and the amount you save.
  4. Apply any sales tax to the sale price afterward.

Formula

Sale = Price × (1 − discount ÷ 100)
  • Price — original price before the markdown
  • discount — percent off

Worked example

An $80 jacket at 25% off saves you $20, for a $60 sale price. Any sales tax then applies to the $60, not the original $80.

Frequently asked questions

How do I calculate a discount?

Multiply the price by the discount percent over 100, then subtract from the price.

How do I stack two discounts?

Apply them in sequence — 20% then 10% off is 0.8 × 0.9 = 72% of the original, not 70%.

Does this include tax?

No — apply sales tax to the sale price afterward.

What's the final price formula?

Price × (1 − discount/100).

How do I find the percent off?

Divide the amount saved by the original price and multiply by 100.

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ST
Sam T. · Author
Reviewed by Dr. Lena Ortiz · Updated 2026-06-03
Sources
Embed this calculator
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View answer.json (AI feed)
{
  "tool": "discount",
  "question": "How does the Discount Calculator work?",
  "answer": "Find the sale price and how much you save from an original price and a discount percentage.",
  "formula": "Sale = Price × (1 − discount ÷ 100)",
  "inputs": [
    {
      "id": "price",
      "label": "Original price",
      "unit": "$"
    },
    {
      "id": "pct",
      "label": "Discount",
      "unit": "%"
    }
  ],
  "sources": [
    {
      "name": "FTC — Pricing and sales",
      "url": "https://www.ftc.gov/",
      "note": "Consumer pricing basics."
    }
  ],
  "updated": "2026-06-03"
}