A current limitation in Power BI SWITCH measures (and all Power Pivot actually) is that a SWITCH measure must have a single format. It is currently not possible to conditionally format the measure r...
myMeasure = SUMX(MeasureTable,switch([selected measure], 1,{[Total Sales], type currency}, 2,{[Total Cost], type currency}, 3,{[Total Margin], Percentage.Type}, 4,{[Chg Sales vs LY %], Percentage.Type} ))
