What is 42 Percent of 100?
42% of 100 = 42
- Result
- 42
- Remaining
- 58
- 42% as decimal
- 0.42
- 100 + 42%
- 142
Sumwise · Maintained by Theo Abbott (pen name) · automated checks · Data: exact arithmetic; unit definitions from NIST SP 811 · Updated · How the checks work
How to work it out
- Turn the percentage into a decimal: 42 ÷ 100 = 0.42
- Multiply: 0.42 × 100 = 42
- Check: Work backwards: 42 ÷ 100 × 100 = 42%.
Another method. As a proportion of part to whole: 42/100 = part/100, so part = 42 × 100 ÷ 100 = 42. Both methods always give the same answer.
In a spreadsheet: =42%*100. Forgetting to divide the percentage by 100 makes the answer 100 times too big. Note that x% of y always equals y% of x.
What the result means
42 is the 42% share of 100. The remaining 58% is 58, and the two parts add back up to 100.
Discounts: 42% off an item priced $100 saves $42, so you pay $58.
Adding and taking away 42%
Increasing 100 by 42% gives 142 and decreasing it by 42% gives 58. These do not cancel out: raising 100 by 42% and then lowering the result by 42% ends at 82.36, because the second 42% is taken of a bigger number.
Related results
| 5% of 100 | 5% of 100 = 5 |
| 10% of 100 | 10% of 100 = 10 |
| 15% of 100 | 15% of 100 = 15 |
| 20% of 100 | 20% of 100 = 20 |
| 25% of 100 | 25% of 100 = 25 |
| 50% of 100 | 50% of 100 = 50 |
| 75% of 100 | 75% of 100 = 75 |
The other way round: 100% of 42. 42% of 100 and 100% of 42 are always equal (both are 42 × 100 ÷ 100 = 42), so you can swap the numbers when one order is easier to work out in your head.
Practice
| 9% of 76 | Show answer9% of 76 = 6.84 |
| 39% of 47 | Show answer39% of 47 = 18.33 |
| 14% of 89 | Show answer14% of 89 = 12.46 |
| 10% of 95 | Show answer10% of 95 = 9.5 |
| 35% of 65 | Show answer35% of 65 = 22.75 |
| 80% of 76 | Show answer80% of 76 = 60.8 |
How answers are calculated and checked: methodology.
Questions
What is 42 Percent of 100?
42% of 100 is 42. Formula, steps and practice examples.
What is 42% off 100?
58. Taking 42% off leaves 58% of 100.
What is 100 plus 42%?
142. Adding 42% is the same as multiplying by 1.42.