Sumx is not working with iterative condition

Hi BChinya ,

Please try:

Number of subjects within = 
VAR _Binsize_min =
    SELECTEDVALUE ( 'Bin Start'[Bin Start] )
VAR _binsize_end =
    _Binsize_min + SELECTEDVALUE ( 'Bin Size'[Bin Size] )
VAR _subnr =
    CALCULATE (
        COUNTROWS ( DM ),
        'DM'[Age] >= _Binsize_min
            && 'DM'[Age] < _binsize_end,
        ALLSELECTED ( 'DM'[Subject] )
    )
RETURN
    _subnr

Output:

Best Regards,
Gao
Community Support Team

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