4 is 10% of 40. Divide 4 by 40 and multiply by 100: 4 ÷ 40 = 0.1, and 0.1 × 100 = 10%.
How to work out what percent 4 is of 40
Percent = (X ÷ Y) × 100
- Write it as a fraction: 4/40 (simplifies to 1/10).
- Divide: 4 ÷ 40 = 0.1.
- Multiply by 100: 0.1 × 100 = 10%.
Check: 10% of 40 = 10 × 40 ÷ 100 = 4.
Nearby values
| 1 is what % of 40 | 2.5% |
| 2 is what % of 40 | 5% |
| 3 is what % of 40 | 7.5% |
| 4 is what % of 40 | 10% |
| 5 is what % of 40 | 12.5% |
| 6 is what % of 40 | 15% |
| 7 is what % of 40 | 17.5% |
| 8 is what % of 40 | 20% |
| 9 is what % of 40 | 22.5% |
| 10 is what % of 40 | 25% |
| 11 is what % of 40 | 27.5% |
| 10% of 40 | 4 |
| 20% of 40 | 8 |
| 25% of 40 | 10 |
| 50% of 40 | 20 |
| 75% of 40 | 30 |
Practising percentages? Free printable percentage worksheets with answer keys.