Filter table based off another filtered table

try with this measure and then using a filter > 0

Measure =
COUNTROWS (
    CALCULATETABLE (
        VALUES ( TableA[StoreName] ),
        TREATAS ( VALUES ( TableB[State] ), TableA[State] ),
        TREATAS ( VALUES ( TableB[Category] ), TableA[Category] ),
        EXCEPT ( VALUES ( TableA[StoreName] ), VALUES ( TableB[StoreName] ) )
    )
)

HI, Liaise

     You can try this formula as below:

Measure2 = 
VAR _TABLE2=CALCULATETABLE(VALUES(TableB[StoreName]),ALLEXCEPT(TableB,TableB[Category])) RETURN

VAR A=COUNTROWS (
    CALCULATETABLE (
        FILTER(VALUES ( TableA[StoreName] ),NOT TableA[StoreName] in _TABLE2),
        TREATAS ( VALUES ( TableB[State] ), TableA[State] ),
        TREATAS ( VALUES ( TableB[Category] ), TableA[Category] )
)) RETURN
VAR B=COUNTROWS(TableA) RETURN
IF(ISFILTERED(TableB[Category])&&ISFILTERED(TableB[State]),A,B)

Result:

IF not select from slicer

then I filter them

here is pbix, please try it.

https://www.dropbox.com/s/kuyzsj1j5xkkheg/Filter%20table%20based%20off%20another%20filtered%20table.pbix?dl=0

Best Regards,

Lin