DAX Comparison between tables

Hi Matas 
Pleas etry this code

Document Count = 
SUMX (
    SUMMARIZE ( 'Raw Data','Raw Data'[REGID], 'Raw Data'[DOCID] ),
    CALCULATE (
        VAR EXTable = 
            FILTER ( 'Raw Data', [CALL_POINT] = "EX02" )
        VAR VATable = 
            FILTER ( 'Raw Data', [CALL_POINT] = "VA02" )
        VAR T1 =
            ADDCOLUMNS ( EXTable, "@Rank", RANKX ( EXTable, [Index],, ASC, Dense ) )
        VAR T2 = 
            ADDCOLUMNS ( 
                T1, 
                "@Value", 
                VAR CurrentRank = [@Rank]
                VAR T3 = TOPN ( CurrentRank, VATable, [Index], ASC )
                RETURN
                    MAXX ( T3, [VALUE] )
            )
        VAR T4 = 
            FILTER ( T2, [VALUE] <> [@Value] )
        VAR T5 = SELECTCOLUMNS ( T4, "@DOCID", [DOCID] )
        RETURN
            COUNTROWS ( DISTINCT ( T5 ) )
    )
)