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Excel Formula changes values after a day or so


I have a bunch of text strings separated by commas in a cell (e.g., in COLUMN A here).

Column A Column B
AA,AB,AC ??
AC,AZ,BB ??
AB,BB,CD ??

Each one of these texts is associated with values in a separate sheet called LEGEND.

Column A Column B
AA 15
AB 20
AC 35
BA 90

I want the sum of the values (in Column B on first sheet) associated with the text strings. I have this Vlookup formula in my excel sheet at column B on first sheet =SUM(VLOOKUP(TEXTSPLIT(A1,,","),LEGEND!$A$2:$B$4,2,FALSE)). It gives me the correct SUM but the issue is that when I re-open my file after a day, it only returns the first value and NOT the SUM. e.g., when I run the formula first time, it gives me 70 for the first one but after a day when I re-open my file, the value is already replaced with 15. Please help.

I have tried Mutiple formulas to fix this, but it didn't help.


Solution

  • Well, did this and saved, closed & reopened and still gives results:

    SUM(SUMIFS(B$9:B$12,A$9:A$12,TEXTSPLIT(A2,,",")))

    enter image description here

    Just to prove the points I made in the comment, see:

    enter image description here