Hi Guys,
i have this data, i need to do substract every 7th day value with 1st day value(in raw data page sheet,red highlight) repeatedly as in the attached file (summary page sheet). currently im using vlookup function but problem i need to do manually. Any formula, i can do for this. need your advice on this. Thanks
summary page.JPG
raw data page.JPGraw data page.JPG
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