A $30 item is 30% off. What is the sale price?
The sale price is $21. You save $9.
How to work it out
- 1
The original price is $30 and the discount is 30%.
- 2
Method 1: find the discount, then subtract it.
- 3
Method 2: you pay 70% of the price, so multiply by 0.7:
- 4
Answer: the sale price is $21 and you save $9.
LaTeX source of the formulas on this page
\[ 30 \times 0.7 = 21 \]
\[ 30\% \text{ of } 30 = 0.3 \times 30 = 9\qquad 30 - 9 = 21 \]$30 at other discounts
| Discount | Sale price |
|---|---|
| 5% off | $28.5 |
| 10% off | $27 |
| 15% off | $25.5 |
| 20% off | $24 |
| 25% off | $22.5 |
| 40% off | $18 |
| 50% off | $15 |
Questions
What is 30% off $30?
The sale price is $21. You save $9.
How do I find the sale price quickly?
Multiply the price by 0.7 (that is 100% − 30%).