SUM is the spreadsheet equivalent of an open invite: it welcomes everything into the total, whether it belongs there or not.

Alternatively, since the cells are consecutive, you could also use the SUM feature to sum multiple columns in Excel, based on criteria. In this instance, you would place the cursor in the C10 cell ...

If you need to sum a list of values in multiple columns, use the format "=Sum (A:B)" to sum all the currencies in columns A and B; if the columns also contain headers, Excel ignores this data and ...