Calculated days

Please try the formula below:

Working Days in Month =
CALCULATE (
    COUNTROWS ( 'Date' ),
    WEEKDAY ( 'Date'[Date], 2 ) <= 5
)

Hi! PowerZBI 

You can use something like this, if I understood your problem. Check putting this in matrix visual

Days Count =
VAR WO_Start =
CALCULATE(
MIN('Table'[Date1]),
ALL('Calendar')
)

VAR WO_End =
CALCULATE(
MAX('Labor Data'[Date2]),
ALL('Calendar')
)

VAR StartDate = INT(WO_Start)
VAR EndDate = INT(WO_End)

VAR _days =
COUNTROWS(
FILTER(
'Calendar',
'Calendar'[CALENDAR_DATE] >= StartDate &&
'Calendar'[CALENDAR_DATE] <= EndDate &&
)
)

RETURN
_days