How to find 8 percent of 80
"Percent" means per hundred, so 8% is the fraction 8/100, or 0.08 as a decimal. Taking 8 percent of 80 means multiplying 80 by that fraction:
8% of 80 = 80 x 8 / 100
= 640 / 100
= 6.4The same answer comes from the decimal form: 80 x 0.08 = 6.4. And because multiplication is commutative, 8% of 80 equals 80% of 8, which is sometimes the easier way to see it in your head.
Mental math shortcut
10% of 80 is 8 (move the decimal one place left), and 1% is 0.8. Build 8% from those pieces: 8 x 0.8 = 6.4.
Nearby percentages of 80
| Percent | Of 80 | 80 minus it | 80 plus it |
|---|---|---|---|
| 1% | 0.8 | 79.2 | 80.8 |
| 3% | 2.4 | 77.6 | 82.4 |
| 5% | 4 | 76 | 84 |
| 7% | 5.6 | 74.4 | 85.6 |
| 9% | 7.2 | 72.8 | 87.2 |
| 10% | 8 | 72 | 88 |
| 13% | 10.4 | 69.6 | 90.4 |
| 15% | 12 | 68 | 92 |
| 16% | 12.8 | 67.2 | 92.8 |
| 20% | 16 | 64 | 96 |
| 25% | 20 | 60 | 100 |
| 30% | 24 | 56 | 104 |
8 percent of other amounts
| Amount | 8% of it |
|---|---|
| 20 | 1.6 |
| 25 | 2 |
| 30 | 2.4 |
| 40 | 3.2 |
| 50 | 4 |
| 60 | 4.8 |
| 75 | 6 |
| 100 | 8 |
| 120 | 9.6 |
| 150 | 12 |
Where this comes up
A 8% discount on a 80 price takes off 6.4, leaving 73.6. A 8% tip or tax on 80 adds 6.4, for a total of 86.4. If 80 is a score out of a possible total, 8% of it is the share 6.4 represents. For percent change, reverse percentages, and "X is what percent of Y", use the full percentage calculator.