Percent Off & Discount Calculator
En español: Calculadora de descuentos →
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Quick check: 30% off means you pay 70% of the price.
How the percent off & discount calculation works
Turn the percent into a decimal
30% off is 0.30. Multiply it by the price to get the discount: $50 × 0.30 = $15.
Subtract the discount from the price
$50 − $15 = $35. Or multiply by what's left: $50 × 0.70 = $35.
Apply a second discount to the new price
An extra 10% off $35 is $3.50, so you pay $31.50. That's 37% off in total, not 40%.
Worked example. A $50 item is 30% off. The discount is $15, so the sale price is $35.
Percent Off & Discount FAQ
How do I calculate percent off?
Multiply the price by the percent as a decimal, then subtract it. 30% off $50 is $50 × 0.30 = $15, so you pay $35.
How do I do 30 percent off on a calculator?
Type the price, multiply by 0.7 and press equals. $50 × 0.7 = $35. The 0.7 is what's left after removing 30%.
What is 20 percent off $40?
$32. The discount is $40 × 0.20 = $8.
What is 40 percent off $60?
$36. You save $24.
How do I find the discount percentage from two prices?
Subtract the sale price from the original, divide by the original and multiply by 100. An $80 item on sale for $60 is $20 ÷ $80 = 25% off.
Is 20% off plus an extra 10% off the same as 30% off?
No. The second discount comes off the reduced price, so the total is 28% off. On $100 you pay $72, not $70.