Which formula is used to calculate total sales from the Gross Profit section?

The formula that is used to calculate total sales from the Gross Profit section is the one that adds together the values from the specified range, which in this case is C15 to E15. Using the SUM function allows you to combine these values to determine the total sales figure efficiently.

In spreadsheets, the SUM function is specifically designed for this purpose—to total up numbers in a given set of cells. It provides a straightforward and accurate method for calculating the sum of sales values, which is vital for understanding the overall revenue generated.

The other formulas serve different functions that do not pertain to calculating total sales. For instance, the AVERAGE function finds the mean of the specified numbers, while COUNT only counts the number of entries within the range, and TOTAL is not a recognized function in standard spreadsheet software. Each of these functions has its own use case but does not fulfill the requirement of calculating a total sales figure from multiple sales inputs.