When you only need two outcomes, the IF function is fine. But the moment you start stacking conditions (if this, then that, otherwise if this, then that), you’re building a house of cards. At first, ...
I wouldn't get anything done if I didn't make lists. These two apps - for MacOS and Windows - are my most recommended.
I can easily achieve the same result with a pivot table by dragging the Salesperson field into Rows and the Sales field into ...