10 is what percent of 40?
25%
10 is 25% of 40.
How it is worked out
Divide the part by the whole, then multiply by 100.
10 ÷ 40 = 0.25, and 0.25 × 100 = 25%
Try your own numbers
Answer25%
Open the full percentage calculator for every other form.
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One number as a percentage of another
Questions
- 10 is what percent of 40?
- 10 is 25% of 40. 10 ÷ 40 = 0.25, and 0.25 × 100 = 25%.
- How do you work this out?
- Divide the part by the whole, then multiply by 100.
- Can I use other numbers?
- Yes — the calculator on this page takes any two numbers, and the full percentage calculator covers every form: percentage of a number, one number as a percentage of another, percentage change, increase and decrease.