In Excel, there are two ways of calculating the weighted average with percentages: using the SUM function and using the SUMPRODUCT function. Let us have a look at these 2 methods in detail.

For example, the SUM function is a popular choice for quickly adding numbers. Instead of writing =A1+A2+A3+A4+A5, you can simply use =SUM (A1:A5). Note that these are both formulas, but only the ...

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Dynamic formulas using modern Excel functions like `SCAN`, `SEQUENCE`, and `LET` automate cumulative average calculations, adapting seamlessly to data changes and improving efficiency.