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

Press Alt > W > E > F in sequence (not all at once). This sequence activates the View tab and toggles the Focus Cell. Remembering this shortcut lets you treat the feature as a temporary reading ruler.

Learn how to calculate weighted averages using Excel for various financial metrics. Simplify complex calculations with our ...