How to find 3 percent of 10
"Percent" means per hundred, so 3% is the fraction 3/100, or 0.03 as a decimal. Taking 3 percent of 10 means multiplying 10 by that fraction:
3% of 10 = 10 x 3 / 100
= 30 / 100
= 0.3The same answer comes from the decimal form: 10 x 0.03 = 0.3. And because multiplication is commutative, 3% of 10 equals 10% of 3, which is sometimes the easier way to see it in your head.
Mental math shortcut
10% of 10 is 1 (move the decimal one place left), and 1% is 0.1. Build 3% from those pieces: 3 x 0.1 = 0.3.
Nearby percentages of 10
| Percent | Of 10 | 10 minus it | 10 plus it |
|---|---|---|---|
| 1% | 0.1 | 9.9 | 10.1 |
| 2% | 0.2 | 9.8 | 10.2 |
| 4% | 0.4 | 9.6 | 10.4 |
| 5% | 0.5 | 9.5 | 10.5 |
| 6% | 0.6 | 9.4 | 10.6 |
| 8% | 0.8 | 9.2 | 10.8 |
| 10% | 1 | 9 | 11 |
| 15% | 1.5 | 8.5 | 11.5 |
| 20% | 2 | 8 | 12 |
| 25% | 2.5 | 7.5 | 12.5 |
| 30% | 3 | 7 | 13 |
| 50% | 5 | 5 | 15 |
3 percent of other amounts
| Amount | 3% of it |
|---|---|
| 20 | 0.6 |
| 25 | 0.75 |
| 30 | 0.9 |
| 40 | 1.2 |
| 50 | 1.5 |
Where this comes up
A 3% discount on a 10 price takes off 0.3, leaving 9.7. A 3% tip or tax on 10 adds 0.3, for a total of 10.3. If 10 is a score out of a possible total, 3% of it is the share 0.3 represents. For percent change, reverse percentages, and "X is what percent of Y", use the full percentage calculator.