How to find 12 percent of 40
"Percent" means per hundred, so 12% is the fraction 12/100, or 0.12 as a decimal. Taking 12 percent of 40 means multiplying 40 by that fraction:
12% of 40 = 40 x 12 / 100
= 480 / 100
= 4.8The same answer comes from the decimal form: 40 x 0.12 = 4.8. And because multiplication is commutative, 12% of 40 equals 40% of 12, which is sometimes the easier way to see it in your head.
Mental math shortcut
10% of 40 is 4 (move the decimal one place left), and 1% is 0.4. Build 12% from those pieces: 1 x 4 + 2 x 0.4 = 4.8.
Nearby percentages of 40
| Percent | Of 40 | 40 minus it | 40 plus it |
|---|---|---|---|
| 1% | 0.4 | 39.6 | 40.4 |
| 5% | 2 | 38 | 42 |
| 7% | 2.8 | 37.2 | 42.8 |
| 10% | 4 | 36 | 44 |
| 11% | 4.4 | 35.6 | 44.4 |
| 13% | 5.2 | 34.8 | 45.2 |
| 15% | 6 | 34 | 46 |
| 17% | 6.8 | 33.2 | 46.8 |
| 20% | 8 | 32 | 48 |
| 24% | 9.6 | 30.4 | 49.6 |
| 25% | 10 | 30 | 50 |
| 30% | 12 | 28 | 52 |
12 percent of other amounts
| Amount | 12% of it |
|---|---|
| 10 | 1.2 |
| 20 | 2.4 |
| 25 | 3 |
| 30 | 3.6 |
| 50 | 6 |
| 60 | 7.2 |
| 75 | 9 |
| 80 | 9.6 |
| 100 | 12 |
| 120 | 14.4 |
Where this comes up
A 12% discount on a 40 price takes off 4.8, leaving 35.2. A 12% tip or tax on 40 adds 4.8, for a total of 44.8. If 40 is a score out of a possible total, 12% of it is the share 4.8 represents. For percent change, reverse percentages, and "X is what percent of Y", use the full percentage calculator.