I'm having difficulty creating a calculated column. I've attached the table layout for the three tables in the visualization. I tried the following calculated column statement:
ResponseRate = (GiftsPerSegment[NumberOfDonors])/RELATED(InitialMailingCounts[TotalMailingCount])
and I get an error:
"The column 'Initial Mailing Counts[TotalMailingCount] either doesn't exist or doesn't have a relationship to any table available in the current context. I'm not sure why since the two tables are joined. Any help would be greatly appreciated.