Excel Calculation help


I am currently working on a financial model for a SaaS company. I created the following formula to calculate churned MRR (it can be slightly modified to calculate expansion and reduction MRR as well):


However, SUMPRODUCT makes the spreadsheet unusable and extremely slow. I am sure there is a "lighter" formula out there but I cant find anything that works.

I have managed to run everything else with SUMIFS.

Any help would be appreciated!
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You can try to limit your ranges. E:E looks at everything from E1 to E1,048,576. Try something like E1:E100000.

barry houdiniCommented:
Why not use SUMIFS here too, it'll be much faster even referring to whole columns


regards, barry

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Martin LissOlder than dirtCommented:
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