How to find 25 percent of 80
"Percent" means per hundred, so 25% is the fraction 25/100, or 0.25 as a decimal. Taking 25 percent of 80 means multiplying 80 by that fraction:
25% of 80 = 80 x 25 / 100
= 2,000 / 100
= 20The same answer comes from the decimal form: 80 x 0.25 = 20. And because multiplication is commutative, 25% of 80 equals 80% of 25, 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 25% from those pieces: 2 x 8 + 5 x 0.8 = 20.
Nearby percentages of 80
| Percent | Of 80 | 80 minus it | 80 plus it |
|---|---|---|---|
| 1% | 0.8 | 79.2 | 80.8 |
| 5% | 4 | 76 | 84 |
| 10% | 8 | 72 | 88 |
| 15% | 12 | 68 | 92 |
| 20% | 16 | 64 | 96 |
| 24% | 19.2 | 60.8 | 99.2 |
| 26% | 20.8 | 59.2 | 100.8 |
| 30% | 24 | 56 | 104 |
| 50% | 40 | 40 | 120 |
| 75% | 60 | 20 | 140 |
25 percent of other amounts
| Amount | 25% of it |
|---|---|
| 20 | 5 |
| 25 | 6.25 |
| 30 | 7.5 |
| 40 | 10 |
| 50 | 12.5 |
| 60 | 15 |
| 75 | 18.75 |
| 100 | 25 |
| 120 | 30 |
| 150 | 37.5 |
Where this comes up
A 25% discount on a 80 price takes off 20, leaving 60. A 25% tip or tax on 80 adds 20, for a total of 100. If 80 is a score out of a possible total, 25% of it is the share 20 represents. For percent change, reverse percentages, and "X is what percent of Y", use the full percentage calculator.