A $30 item is 10% off. What is the sale price?
The sale price is $27. You save $3.
How to work it out
- 1
The original price is $30 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 $27 and you save $3.
LaTeX source of the formulas on this page
\[ 30 \times 0.9 = 27 \]
\[ 10\% \text{ of } 30 = 0.1 \times 30 = 3\qquad 30 - 3 = 27 \]$30 at other discounts
| Discount | Sale price |
|---|---|
| 5% off | $28.5 |
| 15% off | $25.5 |
| 20% off | $24 |
| 25% off | $22.5 |
| 30% off | $21 |
| 40% off | $18 |
| 50% off | $15 |
Questions
What is 10% off $30?
The sale price is $27. You save $3.
How do I find the sale price quickly?
Multiply the price by 0.9 (that is 100% − 10%).