Getting consistent customers

Hi,

Please check the below picture and the attached pbix file.

I tried to create a sample pbix file like below.

Past 3 months consistent customers count: = 
VAR _selectedcategory =
    VALUES ( Category[Category] )
VAR _pastmonthsnumberselect = 3
VAR _selectedmonthenddate =
    MAX ( 'Calendar'[End of Month] )
VAR _startdate =
    EOMONTH ( _selectedmonthenddate, - _pastmonthsnumberselect ) + 1
VAR _monthlycalendartable =
    SUMMARIZE (
        FILTER (
            ALL ( 'Calendar' ),
            'Calendar'[Date] <= _selectedmonthenddate
                && 'Calendar'[Date] >= _startdate
        ),
        'Calendar'[Month-Year]
    )
VAR _newtable =
    FILTER (
        SUMMARIZE (
            ADDCOLUMNS (
                FILTER (
                    SUMMARIZE (
                        ALL ( Data ),
                        Category[Category],
                        Customer[Cust_ID],
                        'Calendar'[Month-Year]
                    ),
                    'Calendar'[Month-Year]
                        IN _monthlycalendartable
                        && Category[Category] IN _selectedcategory
                ),
                "@amountsum", CALCULATE ( SUM ( Data[Amount] ) )
            ),
            Customer[Cust_ID],
            'Calendar'[Month-Year],
            [@amountsum]
        ),
        [@amountsum] <> 0
    )
VAR _groupbycustomer =
    FILTER (
        GROUPBY (
            _newtable,
            Customer[Cust_ID],
            "@monthcount", SUMX ( CURRENTGROUP (), 1 )
        ),
        [@monthcount] >= _pastmonthsnumberselect
    )
VAR _result =
    COUNTROWS ( _groupbycustomer )
RETURN
    _result + 0

Past 6 months consistent customers count: = 
VAR _selectedcategory =
    VALUES ( Category[Category] )
VAR _pastmonthsnumberselect = 6
VAR _selectedmonthenddate =
    MAX ( 'Calendar'[End of Month] )
VAR _startdate =
    EOMONTH ( _selectedmonthenddate, - _pastmonthsnumberselect ) + 1
VAR _monthlycalendartable =
    SUMMARIZE (
        FILTER (
            ALL ( 'Calendar' ),
            'Calendar'[Date] <= _selectedmonthenddate
                && 'Calendar'[Date] >= _startdate
        ),
        'Calendar'[Month-Year]
    )
VAR _newtable =
    FILTER (
        SUMMARIZE (
            ADDCOLUMNS (
                FILTER (
                    SUMMARIZE (
                        ALL ( Data ),
                        Category[Category],
                        Customer[Cust_ID],
                        'Calendar'[Month-Year]
                    ),
                    'Calendar'[Month-Year]
                        IN _monthlycalendartable
                        && Category[Category] IN _selectedcategory
                ),
                "@amountsum", CALCULATE ( SUM ( Data[Amount] ) )
            ),
            Customer[Cust_ID],
            'Calendar'[Month-Year],
            [@amountsum]
        ),
        [@amountsum] <> 0
    )
VAR _groupbycustomer =
    FILTER (
        GROUPBY (
            _newtable,
            Customer[Cust_ID],
            "@monthcount", SUMX ( CURRENTGROUP (), 1 )
        ),
        [@monthcount] >= _pastmonthsnumberselect
    )
VAR _result =
    COUNTROWS ( _groupbycustomer )
RETURN
    _result + 0