How to find 5 percent of 20
"Percent" means per hundred, so 5% is the fraction 5/100, or 0.05 as a decimal. Taking 5 percent of 20 means multiplying 20 by that fraction:
5% of 20 = 20 x 5 / 100
= 100 / 100
= 1The same answer comes from the decimal form: 20 x 0.05 = 1. And because multiplication is commutative, 5% of 20 equals 20% of 5, 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 5% from those pieces: 5 x 0.2 = 1.
Nearby percentages of 20
| Percent | Of 20 | 20 minus it | 20 plus it |
|---|---|---|---|
| 1% | 0.2 | 19.8 | 20.2 |
| 4% | 0.8 | 19.2 | 20.8 |
| 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 |
5 percent of other amounts
| Amount | 5% of it |
|---|---|
| 10 | 0.5 |
| 25 | 1.25 |
| 30 | 1.5 |
| 40 | 2 |
| 50 | 2.5 |
| 60 | 3 |
| 75 | 3.75 |
| 80 | 4 |
| 100 | 5 |
Where this comes up
A 5% discount on a 20 price takes off 1, leaving 19. A 5% tip or tax on 20 adds 1, for a total of 21. If 20 is a score out of a possible total, 5% of it is the share 1 represents. For percent change, reverse percentages, and "X is what percent of Y", use the full percentage calculator.