I have a sheet where data is added from time to time. The data is rather simple - object name and its quantity. I want to have a column with sum of object's quantity up to mentioned row. This is easily achieved via regular formulas (SUMIF($A$2:$A2;$A2;$B$2:$B2)) but I can't manage a solution via ARRAYFORMULA as SUMIFS does not work with it and I had no success with giving dynamic range to SUMIF (arrayformula(SUMIF(B2:B&ROW(C2:C);B2:B;C2:C))).Here's the spreadsheet - https://docs.google.com/spreadsheets/d/1Omgc62Q3OHxwpNBJxMiiJGFToRfzdLs6l2EkrJ_koew/edit?usp=sharingThis seems like a rather easy task but I was not able to implement an easy solution without dozens of nested functions. I was not able to find a solution on Stackexchange as well.
