How do I calculate percent off?

Sale Price = Original Price × (1 − Discount% ÷ 100). For example, 30% off a $80 item: $80 × (1 − 0.30) = $80 × 0.70 = $56. You save $24. Quick mental trick: for 25% off, divide price by 4 and subtract. For 10% off, move decimal left. For 50% off, halve the price.

How do I find the original price from a sale price?

If you know the sale price and discount %, the original price = Sale Price ÷ (1 − Discount% ÷ 100). Example: item is $63 after 30% off → $63 ÷ 0.70 = $90 original price. This works for any discount percentage.

What is the difference between discount amount and discount percentage?

A discount percentage is a ratio (20% off) that scales with the original price. A discount amount is a fixed dollar value ($20 off). A 20% off coupon saves more on expensive items; a $20 off coupon is better on cheap items. Example: $200 item — 20% saves $40, but $20 saves only $20. A $30 item — 20% saves only $6, while $20 off saves more (67% discount).

Discount Calculator

Find the sale price, discount amount, and total savings for any percent-off deal. Optionally add sales tax for the final checkout price.

🏷 Discount Details

Original Price ($)

Discount (%)

Sales Tax Rate (%) — optional

Add your local sales tax to get the final checkout price.

Quick select:

🔢 Discount Formula

Sale Price = Original × (1 − Discount% ÷ 100)

Savings = Original − Sale Price

Example: 30% off $120 → $120 × 0.70 = $84 sale price. You save $36.

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Discount Calculator

🏷 Discount Details

🔢 Discount Formula

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