what formula should i use to calculate the total cost of cell ranges like E5:E16

To calculate the total cost of cell ranges, you can use the SUM function in Microsoft Excel or Google Sheets. Here's how you can do it:

1. Open a new or existing worksheet in Excel or Google Sheets.
2. Make sure the cell where you want to display the total cost is selected.
3. In the formula bar, type "=SUM(" to start the SUM function.
4. Select the cell range you want to include in the calculation, in this case, E5:E16. You can select the first cell (E5), hold down the Shift key, and then select the last cell (E16). Alternatively, you can manually type the cell range after the equal sign (e.g., "E5:E16").
5. Close the parentheses and press Enter.

The formula should look like this: =SUM(E5:E16).

After you press Enter, the cell will display the total sum of the cell range E5:E16.

It's important to note that the cell range you select should contain numerical values for the SUM function to work correctly.