Have you ever thought of the humble SUM function as a secret weapon for advanced analytics? Most Excel users see it as a basic tool for adding numbers, but what if I told you it could do so much more?

Microsoft Excel provides numerous mathematical functions that save time and improve accuracy in data entry. Percentage markups are used in retail, government and business environments to calculate the ...

You’ve used SUM for years. It adds numbers, does its job, and you probably don’t think twice about it. But while you’ve been clicking through filters and building messy helper columns, Excel has been ...