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

Q. I receive regular spreadsheets with all of our company’s accounts, departments, employees, and balances, and I have to subtotal the amounts by accounts, departments, etc. I have been manually doing ...

There's more to Excel's Subtotal feature than you might realize. You can add multiple subtotaling functions to the same row, and you can add multiple rows. You probably know that Excel’s Subtotal ...

For many years, I used the SUBTOTAL function in Microsoft Excel to create easily visible subtotals at the top of my worksheets. However, when I encountered AGGREGATE, this became my go-to function for ...

There are a few ways to count the number of items in an Excel list, depending on the data you have. In this tutorial, learn how to count items in Excel using the COUNTIF and SUBTOTAL functions. Image: ...

Excel percentage formulas can get you through problems large and small every day—from determining sales tax (and tips) to calculating increases and decreases. We’ll walk through several examples below ...

Excel is one of those tools that we all know and use, but let’s be honest—most of us barely scratch the surface of its true potential. Sure, you’ve probably mastered the basics like SUM or AVERAGE, ...

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 ...