15% Off Calculator Example: Price After Discount

Quick answer

To take 15% off a price, multiply the original price by 0.85. The discount itself is the original price multiplied by 0.15.

Formula or method

Step-by-step

1. Convert 15% to 0.15.
2. Calculate the discount: original × 0.15.
3. Subtract the discount, or multiply the original directly by 0.85.

Worked example

15% off $80: discount = 80 × 0.15 = $12. Sale price = 80 − 12 = $68.

How to interpret the result

This gives the price before any sales tax, shipping or other charges.

Common mistakes

• Subtracting 15 dollars instead of 15%.
• Multiplying by 0.15 and treating that as the final price.
• Applying tax before the discount when the real transaction uses another order.