PALLAS / CALCULATOR

Percentage Change Calculator

See the absolute change and percentage increase or decrease between an original value and a new value.

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INPUT

Enter values

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Updates as valid inputs change.
Method & formula

The absolute change is the new value minus the original one. Percentage change compares that difference with the original value, which is why there is no finite percentage when the original value is zero.

  • Change = new value − original value
  • Percentage change = change ÷ original value × 100
Example

Moving from 100 to 120 is an increase of 20, or 20%. Moving from 100 to 80 is a decrease of 20, or −20%.

FAQ

What happens when the original value is zero?

The absolute change can still be shown, but percentage change cannot be calculated because the formula would divide by zero.

Can this show a decrease?

Yes. If the new value is lower than the original one, both the change and the percentage change are negative.

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