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How to calculate percentage change in Excel and Google Sheets

Topic:Percentages
Excel & Google Sheets
=(B2-A2)/A2

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Step by step

  1. 1Subtract the old value from the new value: (B2 − A2).
  2. 2Divide by the old value: =(B2-A2)/A2.
  3. 3Apply Percent format. A positive result is growth, negative is a decline.

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Frequently asked

Why do I get #DIV/0! for percentage change?

The old value (the divisor) is zero or blank. Wrap the formula in IFERROR, or check the starting value.

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Formulas used

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