How to find 20 percent of 10
"Percent" means per hundred, so 20% is the fraction 20/100, or 0.2 as a decimal. Taking 20 percent of 10 means multiplying 10 by that fraction:
20% of 10 = 10 x 20 / 100
= 200 / 100
= 2The same answer comes from the decimal form: 10 x 0.2 = 2. And because multiplication is commutative, 20% of 10 equals 10% of 20, 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 20% from those pieces: 2 x 1 = 2.
Nearby percentages of 10
| Percent | Of 10 | 10 minus it | 10 plus it |
|---|---|---|---|
| 1% | 0.1 | 9.9 | 10.1 |
| 5% | 0.5 | 9.5 | 10.5 |
| 10% | 1 | 9 | 11 |
| 15% | 1.5 | 8.5 | 11.5 |
| 19% | 1.9 | 8.1 | 11.9 |
| 21% | 2.1 | 7.9 | 12.1 |
| 25% | 2.5 | 7.5 | 12.5 |
| 30% | 3 | 7 | 13 |
| 40% | 4 | 6 | 14 |
| 50% | 5 | 5 | 15 |
| 75% | 7.5 | 2.5 | 17.5 |
20 percent of other amounts
| Amount | 20% of it |
|---|---|
| 20 | 4 |
| 25 | 5 |
| 30 | 6 |
| 40 | 8 |
| 50 | 10 |
Where this comes up
A 20% discount on a 10 price takes off 2, leaving 8. A 20% tip or tax on 10 adds 2, for a total of 12. If 10 is a score out of a possible total, 20% of it is the share 2 represents. For percent change, reverse percentages, and "X is what percent of Y", use the full percentage calculator.