ValueYTD:= TOTALYTD(Actuals_Monthly[Value],Date) MaxYTD = VAR Table1 = SUMMARIZE(Actuals_Monthly,Actuals_Monthly[Country],Actuals_Monthly[Program],"YTD",ValueYTD) RETURN SUMX(GROUPBY(Table1,[Country],"MaxSum",MAXX(CURRENTGROUP(),[YTD])),[MaxSum]) I really appreciate any help o...