How to find 30 percent of 20
"Percent" means per hundred, so 30% is the fraction 30/100, or 0.3 as a decimal. Taking 30 percent of 20 means multiplying 20 by that fraction:
30% of 20 = 20 x 30 / 100
= 600 / 100
= 6The same answer comes from the decimal form: 20 x 0.3 = 6. And because multiplication is commutative, 30% of 20 equals 20% of 30, 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 30% from those pieces: 3 x 2 = 6.
Nearby percentages of 20
| Percent | Of 20 | 20 minus it | 20 plus it |
|---|---|---|---|
| 1% | 0.2 | 19.8 | 20.2 |
| 5% | 1 | 19 | 21 |
| 10% | 2 | 18 | 22 |
| 15% | 3 | 17 | 23 |
| 20% | 4 | 16 | 24 |
| 25% | 5 | 15 | 25 |
| 29% | 5.8 | 14.2 | 25.8 |
| 31% | 6.2 | 13.8 | 26.2 |
| 35% | 7 | 13 | 27 |
| 50% | 10 | 10 | 30 |
| 60% | 12 | 8 | 32 |
| 75% | 15 | 5 | 35 |
30 percent of other amounts
| Amount | 30% of it |
|---|---|
| 10 | 3 |
| 25 | 7.5 |
| 30 | 9 |
| 40 | 12 |
| 50 | 15 |
| 60 | 18 |
| 75 | 22.5 |
| 80 | 24 |
| 100 | 30 |
Where this comes up
A 30% discount on a 20 price takes off 6, leaving 14. A 30% tip or tax on 20 adds 6, for a total of 26. If 20 is a score out of a possible total, 30% of it is the share 6 represents. For percent change, reverse percentages, and "X is what percent of Y", use the full percentage calculator.