What is 84 Percent of 42?
84% of 42 = 35.28
- Result
- 35.28
- Remaining
- 6.72
- 84% as decimal
- 0.84
- 42 + 84%
- 77.28
Sumwise · Checked by Theo Abbott · Data: exact arithmetic; unit definitions from NIST SP 811 · Updated · How we check it
How to work it out
- Turn the percentage into a decimal: 84 ÷ 100 = 0.84
- Multiply: 0.84 × 42 = 35.28
- Check: Work backwards: 35.28 ÷ 42 × 100 = 84%.
Another method. As a proportion of part to whole: 84/100 = part/42, so part = 84 × 42 ÷ 100 = 35.28. Both methods always give the same answer.
In a spreadsheet: =84%*42. 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
35.28 is the 84% share of 42. The remaining 16% is 6.72, and the two parts add back up to 42.
Discounts: 84% off an item priced $42 saves $35.28, so you pay $6.72.
Adding and taking away 84%
Increasing 42 by 84% gives 77.28 and decreasing it by 84% gives 6.72. These do not cancel out: raising 42 by 84% and then lowering the result by 84% ends at 12.3648, because the second 84% is taken of a bigger number.
Related results
| 5% of 42 | 5% of 42 = 2.1 |
| 10% of 42 | 10% of 42 = 4.2 |
| 15% of 42 | 15% of 42 = 6.3 |
| 20% of 42 | 20% of 42 = 8.4 |
| 25% of 42 | 25% of 42 = 10.5 |
| 50% of 42 | 50% of 42 = 21 |
| 75% of 42 | 75% of 42 = 31.5 |
The other way round: 42% of 84
Practice
| 16% of 6 | Show answer16% of 6 = 0.96 |
| 56% of 61 | Show answer56% of 61 = 34.16 |
| 45% of 92 | Show answer45% of 92 = 41.4 |
| 18% of 94 | Show answer18% of 94 = 16.92 |
| 55% of 90 | Show answer55% of 90 = 49.5 |
| 31% of 21 | Show answer31% of 21 = 6.51 |
How answers are calculated and checked: methodology.
Questions
What is 84 Percent of 42?
84% of 42 is 35.28. Formula, steps and practice examples.
What is 84% off 42?
6.72. Taking 84% off leaves 16% of 42.
What is 42 plus 84%?
77.28. Adding 84% is the same as multiplying by 1.84.