How to find 8 percent of 30
"Percent" means per hundred, so 8% is the fraction 8/100, or 0.08 as a decimal. Taking 8 percent of 30 means multiplying 30 by that fraction:
8% of 30 = 30 x 8 / 100
= 240 / 100
= 2.4The same answer comes from the decimal form: 30 x 0.08 = 2.4. And because multiplication is commutative, 8% of 30 equals 30% of 8, which is sometimes the easier way to see it in your head.
Mental math shortcut
10% of 30 is 3 (move the decimal one place left), and 1% is 0.3. Build 8% from those pieces: 8 x 0.3 = 2.4.
Nearby percentages of 30
| Percent | Of 30 | 30 minus it | 30 plus it |
|---|---|---|---|
| 1% | 0.3 | 29.7 | 30.3 |
| 3% | 0.9 | 29.1 | 30.9 |
| 5% | 1.5 | 28.5 | 31.5 |
| 7% | 2.1 | 27.9 | 32.1 |
| 9% | 2.7 | 27.3 | 32.7 |
| 10% | 3 | 27 | 33 |
| 13% | 3.9 | 26.1 | 33.9 |
| 15% | 4.5 | 25.5 | 34.5 |
| 16% | 4.8 | 25.2 | 34.8 |
| 20% | 6 | 24 | 36 |
| 25% | 7.5 | 22.5 | 37.5 |
| 30% | 9 | 21 | 39 |
8 percent of other amounts
| Amount | 8% of it |
|---|---|
| 10 | 0.8 |
| 20 | 1.6 |
| 25 | 2 |
| 40 | 3.2 |
| 50 | 4 |
| 60 | 4.8 |
| 75 | 6 |
| 80 | 6.4 |
| 100 | 8 |
| 120 | 9.6 |
Where this comes up
A 8% discount on a 30 price takes off 2.4, leaving 27.6. A 8% tip or tax on 30 adds 2.4, for a total of 32.4. If 30 is a score out of a possible total, 8% of it is the share 2.4 represents. For percent change, reverse percentages, and "X is what percent of Y", use the full percentage calculator.