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Percentage Calculator

X% of Y, what percent one number is of another, percentage change, and increase or decrease by a percent.

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About the Percentage Calculator

Four percentage questions on one page, each answered as you type and each showing its working, so you can check the answer rather than trust it. Numbers can be typed with commas, lakh grouping or Bangla digits.

How to use it

  1. 1Find the question you are asking — of, what percent, change, or increase and decrease.
  2. 2Type the two numbers.
  3. 3Read the answer and the working underneath it.

Questions

Why does percentage change use the starting value?

Because change is measured against where you started. Going from 80 to 100 is a 25% increase; going back from 100 to 80 is a 20% decrease — the same gap, measured from a different base.

Are my figures saved or sent anywhere?

No. The calculation happens in this browser tab as you type. Nothing you enter is sent to KuponGuru or stored.

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