A $40 item is 10% off. What is the sale price?
The sale price is $36. You save $4.
How to work it out
- 1
The original price is $40 and the discount is 10%.
- 2
Method 1: find the discount, then subtract it.
- 3
Method 2: you pay 90% of the price, so multiply by 0.9:
- 4
Answer: the sale price is $36 and you save $4.
LaTeX source of the formulas on this page
\[ 40 \times 0.9 = 36 \]
\[ 10\% \text{ of } 40 = 0.1 \times 40 = 4\qquad 40 - 4 = 36 \]$40 at other discounts
| Discount | Sale price |
|---|---|
| 5% off | $38 |
| 15% off | $34 |
| 20% off | $32 |
| 25% off | $30 |
| 30% off | $28 |
| 40% off | $24 |
| 50% off | $20 |
Questions
What is 10% off $40?
The sale price is $36. You save $4.
How do I find the sale price quickly?
Multiply the price by 0.9 (that is 100% − 10%).