Percentage Calculator
Pick the question you are asking; each mode shows the answer and the working.
Private: your numbers stay on your device.Calculated in your browser. The amounts you enter are never sent to us or stored.
Quick answer
X% of Y = X × Y ÷ 100. X as a percentage of Y = X ÷ Y × 100. Percentage change = (new − old) ÷ old × 100.
How to use the Percentage Calculator
- Choose the mode.
- Enter the two numbers.
- Read the result and the formula used.
Worked example
Price rose from ₹250 to ₹300: change = (300 − 250) ÷ 250 × 100 = 20% increase.
Formula
X% of Y = X × Y ÷ 100 Percentage change = (New − Old) ÷ Old × 100
Frequently asked questions
Why is a 50% fall followed by a 50% rise not back to the start?
The rise is on a smaller base. ₹100 falls 50% to ₹50; a 50% rise takes it to ₹75.
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