How to find 3 percent of 20
"Percent" means per hundred, so 3% is the fraction 3/100, or 0.03 as a decimal. Taking 3 percent of 20 means multiplying 20 by that fraction:
3% of 20 = 20 x 3 / 100
= 60 / 100
= 0.6The same answer comes from the decimal form: 20 x 0.03 = 0.6. And because multiplication is commutative, 3% of 20 equals 20% of 3, which is sometimes the easier way to see it in your head.
Mental math shortcut
10% of 20 is 2 (move the decimal one place left), and 1% is 0.2. Build 3% from those pieces: 3 x 0.2 = 0.6.
Nearby percentages of 20
| Percent | Of 20 | 20 minus it | 20 plus it |
|---|---|---|---|
| 1% | 0.2 | 19.8 | 20.2 |
| 2% | 0.4 | 19.6 | 20.4 |
| 4% | 0.8 | 19.2 | 20.8 |
| 5% | 1 | 19 | 21 |
| 6% | 1.2 | 18.8 | 21.2 |
| 8% | 1.6 | 18.4 | 21.6 |
| 10% | 2 | 18 | 22 |
| 15% | 3 | 17 | 23 |
| 20% | 4 | 16 | 24 |
| 25% | 5 | 15 | 25 |
| 30% | 6 | 14 | 26 |
| 50% | 10 | 10 | 30 |
3 percent of other amounts
| Amount | 3% of it |
|---|---|
| 10 | 0.3 |
| 25 | 0.75 |
| 30 | 0.9 |
| 40 | 1.2 |
| 50 | 1.5 |
| 60 | 1.8 |
| 75 | 2.25 |
| 80 | 2.4 |
| 100 | 3 |
Where this comes up
A 3% discount on a 20 price takes off 0.6, leaving 19.4. A 3% tip or tax on 20 adds 0.6, for a total of 20.6. If 20 is a score out of a possible total, 3% of it is the share 0.6 represents. For percent change, reverse percentages, and "X is what percent of Y", use the full percentage calculator.