Percentage calculator

Three everyday percentage sums in one place: a percent of a number, one number as a percent of another, and the percentage change between two numbers.

What is X% of Y?

18% of 2,500
450

X is what percent of Y?

450 out of 3,000
15%

Percentage increase or decrease

Increase
15%
Difference6,000

Questions people ask

How do I calculate a percentage of a number?

Multiply the number by the percentage and divide by 100. 18% of ₹2,500 is 2,500 × 18 ÷ 100 = ₹450.

How do I work out a percentage of marks?

Divide marks scored by total marks and multiply by 100. 450 out of 500 is 90%.

How do I calculate percentage increase?

(New value − old value) ÷ old value × 100. A salary rising from ₹40,000 to ₹46,000 is a 15% increase.

Why is a 50% fall not undone by a 50% rise?

Because the rise is on a smaller base. ₹100 falling 50% is ₹50; a 50% rise on ₹50 only takes it to ₹75. You would need 100% to get back to ₹100.

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Results are estimates for information only, not financial or tax advice. Rates, rules and limits change, so check with your bank, employer or a qualified adviser before you decide.