To change the percent symbol in Excel, follow these steps:

1. Click File > Options.
2. In the Advanced section, under Editing options, select or clear the Use 1000 separator (,) for decimals and commas for thousands check box to show or hide the comma separator.
3. Click OK.

Note: If you want to change other number format options, such as the decimal separator or the currency symbol, click Additional settings. For more information, see Change the number format to show leading zeros, or Change the currency symbol for one or more currencies.