I need to calculate the % of Grand Total on Microsoft Excel, but can't for the life of me remember how to do that. Help would be greatly appreciated. PS: Reposting my question because the answers I got previously were both only made for points, not to help in any way. :(

You need to first use the Sum function to add up all the costs of September.

Then divide each September cost by the grand total that you got. After that format the last column to be percentages.

Look at the attached file for the formulas used.

answer; i believe its aptitude;

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