Percentage Calculator
Three common percentage jobs in one place: find a percentage of a number, express one number as a percentage of another (handy for exam marks), and measure a percentage increase or decrease between two values.
Percentage Calculator
How this calculator works
X% of Y = X × Y ÷ 100. A as % of B = A ÷ B × 100. Change % = (new − old) ÷ old × 100.
- For exam marks, enter marks obtained as the first value and total marks as the second.
- A negative change percentage means a decrease.
Frequently asked questions
How do I calculate exam percentage?
Choose “A is what % of B”, enter the marks you scored as A and the total marks as B. The result is your percentage.
How do I find percentage increase?
Choose “Percentage change”, enter the old value as A and the new value as B. A positive result is an increase and a negative result is a decrease.
Disclaimer: results are estimates for planning only. Interest rates, tax slabs and government charges change — confirm the final figure with your bank, employer or the official government portal before you act on it.