Learn What GROUPBY Can Really Do in Excel : From Smart Sorting to Percent of Totals

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

15 Microsoft 365 Copilot Tricks to Speed up Chat, Email, Data & Slides for Busy Teams

Discover 15 practical Copilot tricks and tips for Outlook, Excel, Word, Teams & PowerPoint to save time and reduce daily ...
Investopedia

Excel for Investors: Simulating Stock Prices for Better Insights

Carol M. Kopp edits features on a wide range of subjects for Investopedia, including investing, personal finance, retirement planning, taxes, business management, and career development. Monte Carlo ...
Investopedia

Calculate EBITDA Margin in Excel: Step-by-Step Guide

Claire Boyte-White is the lead writer for NapkinFinance.com, co-author of I Am Net Worthy, and an Investopedia contributor. Claire's expertise lies in corporate finance & accounting, mutual funds, ...