Learn how GROUPBY passes both subset and full arrays into LAMBDA in Excel, letting you compute percent shares fast and explain results clearly.

Using the example in our spreadsheet or a similar spreadsheet, highlight all the revenue numbers in the sheet and then in the ...

Excel's UNIQUE function is the modern, non-destructive answer to the mailing list problem. Instead of deleting rows from your ...

Microsoft's spreadsheet program can do way more than you might imagine. These are the hacks and tricks you need to know.

If you’ve already fallen off your workout routine, you’re not alone—and it doesn’t mean you’re failing. January 9 is known as Quitter’s Day, the point when motivation dips and New Year’s resolutions ...

Excellence in business comes in many forms. For some companies, it’s a creative use of artificial intelligence to drive growth. For others, it’s a viral marketing campaign or a game-changing invention ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...