Learn how to highlight cells with negative values in Excel. Make negative numbers stand out in Red using Conditional or Custom Formatting.

You can subtract numbers in Microsoft Excel in a few different ways, depending on your data and formatting.

Learn how to use either of these methods in Microsoft Excel to display negative values in red.

Here is a tutorial to lock or hide only the formula cells in an Excel workbook. You can also lock formulas in all worksheets in a workbook.