The known: -Column A - Tenant, Column B - Flat no., Column C - Duration stayed, Column D - Energy consumed in flat.
To find out:-Column E - Energy consumed per tenant.
Condition,I have to consider the unique value of A as an identifier in order to avoid duplicate results/error in calculations.
Example - 4 people A2:A5 stay in the same flat B2:B5, they have consumed 85KW "D" in 30 days "C"
Simple Formula: =D2/SUM(C2:C5)*C2 (Manual process as per every flat)
Forumula to automate: =IF(COUNTIF($A$2:A2,A2)=1,D2/SUMIF($B$2:$B$44,B2,$C$2:$C$44)*C2,"")However this formula is wrong because it gives correct value till a certain range, if I increase the range for B column, the result value changes and it becomes incorrect.
Can someone help me with this please?
Thank you.
Dummy sheet link - https://www.dropbox.com/scl/fi/dc8jvqlqfq9ozge7iyuiz/Dummy.xlsx?dl=0&rlkey=1fpsgjybibsneblydqc1kusz1












