A $90 item is 10% off. What is the sale price?
The sale price is $81. You save $9.
How to work it out
- 1
The original price is $90 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 $81 and you save $9.
LaTeX source of the formulas on this page
\[ 90 \times 0.9 = 81 \]
\[ 10\% \text{ of } 90 = 0.1 \times 90 = 9\qquad 90 - 9 = 81 \]$90 at other discounts
| Discount | Sale price |
|---|---|
| 5% off | $85.5 |
| 15% off | $76.5 |
| 20% off | $72 |
| 25% off | $67.5 |
| 30% off | $63 |
| 40% off | $54 |
| 50% off | $45 |
Questions
What is 10% off $90?
The sale price is $81. You save $9.
How do I find the sale price quickly?
Multiply the price by 0.9 (that is 100% − 10%).