How to find 1 percent of 20
"Percent" means per hundred, so 1% is the fraction 1/100, or 0.01 as a decimal. Taking 1 percent of 20 means multiplying 20 by that fraction:
1% of 20 = 20 x 1 / 100
= 20 / 100
= 0.2The same answer comes from the decimal form: 20 x 0.01 = 0.2. And because multiplication is commutative, 1% of 20 equals 20% of 1, 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 1% from those pieces: 1 x 0.2 = 0.2.
Nearby percentages of 20
| Percent | Of 20 | 20 minus it | 20 plus it |
|---|---|---|---|
| 2% | 0.4 | 19.6 | 20.4 |
| 5% | 1 | 19 | 21 |
| 6% | 1.2 | 18.8 | 21.2 |
| 10% | 2 | 18 | 22 |
| 15% | 3 | 17 | 23 |
| 20% | 4 | 16 | 24 |
| 25% | 5 | 15 | 25 |
| 30% | 6 | 14 | 26 |
| 50% | 10 | 10 | 30 |
| 75% | 15 | 5 | 35 |
1 percent of other amounts
| Amount | 1% of it |
|---|---|
| 10 | 0.1 |
| 25 | 0.25 |
| 30 | 0.3 |
| 40 | 0.4 |
| 50 | 0.5 |
| 60 | 0.6 |
| 75 | 0.75 |
| 80 | 0.8 |
| 100 | 1 |
Where this comes up
A 1% discount on a 20 price takes off 0.2, leaving 19.8. A 1% tip or tax on 20 adds 0.2, for a total of 20.2. If 20 is a score out of a possible total, 1% of it is the share 0.2 represents. For percent change, reverse percentages, and "X is what percent of Y", use the full percentage calculator.