Compare data from two different table visuals that exist from different data sources

Hi blackbach2728 

Please try this:
Here are 2 sample data:

Table A:

Table B:

Click Transform data in the Home pane to use power query.

Click Custom Column in the Add Column pane:

You can use this m-code to get numbers from columns:

Text.Select([Value],{"0".."9","."})

Add for both 2 tables:

Close&Apply.

Finally, add a measure:

MEASURE =
COUNTROWS (
    FILTER (
        CROSSJOIN ( 'Table A', 'Table B' ),
        'Table A'[Custom] = 'Table B'[Custom]
    )
)

The result is as follow:

Best Regards

Zhengdong Xu
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