How to Change Signs of Cells in Excel

To change the signs of cells in Excel, follow these steps:

1. Select the range of cells that you want to change the signs of.
2. Right-click on the selected cells and choose "Copy" or press "Ctrl+C" on your keyboard.
3. Right-click on a blank cell where you want to paste the values and choose "Paste Special" or press "Ctrl+Alt+V" on your keyboard.
4. In the "Paste Special" dialog box, check the box next to "Values" and then check the box next to "Multiply" under "Operations".
5. In the "Multiply" box, enter
   Code:

   -1

   and click "OK".

This will multiply all the values in the selected range by -1, effectively changing all the minus signs to plus signs and vice versa.