Increase or decrease a number by a percentage

Microsoft Office Excel 2003

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  1. Create a blank workbook or worksheet.
  2. Select the example in the Help topic. Do not select the row or column headers.

    Selecting an example from Help

    Selecting an example from Help

  3. Press CTRL+C.
  4. In the worksheet, select cell A1, and press CTRL+V.
  5. To switch between viewing the results and viewing the formulas that return the results, press CTRL+` (grave accent), or on the Tools menu, point to Formula Auditing, and then click Formula Auditing Mode.
 
1
2
A B
Number Percent Increase
23 3%
Formula Description (Result)
=A2*(1+5%) Increases number in A2 by 5% (24.15)
=A2*(1+B2) Increase number in A2 by the percent value in B2: 3% (23.69)
=A2*(1-B2) Decrease number in A2 by the percent value in B2: 3% (22.31)

Note  When you use a number followed by a percent sign (%), the number is interpreted as a hundredth of its value. For example, 5% is interpreted as .05.

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