Count of active employees between two date columns, by department - powerbi

Question

I'm trying to imitate this report (page 3) where it slices active headcount and all the other metrics (1) by date and (2) by department.
My data looks like this (with relationships, of course):
ID
Name
DEPID
Hired Date
Terminated Date
Terminated (Y/N)
1
John
2
1/1/2019
2020/12/31
Y
2
Jane
2
1/3/2018
2019/07/26
Y
3
Jack
1
1/5/2022
null
N
Using the following measure, I was able to extract total number of employees by date, but I wasn't able to filter by department:
CountOfActive =
var _selectedDate = MAX('Calendar'[Date])
return
CALCULATE(COUNTROWS('Table'); filter(ALL('Table'); Table[HIREDDATE] <= VALUE(_selectedDate) && (Table[TERMINATEDDATE] >= VALUE(_selectedDate) || ISBLANK(Table[TERMINATEDDATE]))))
My ideal output is something like the following (where I'll create a table for each department and list the number of active employees, then join them to my department key table afterwards so I can slice them):
Date
Count of Active Employees
Department
2019/1/1
3
Retail
2019/1/2
3
Retail
2019/1/3
4
Retail
...
...
...
The "Date" column would be a calendar table built with CALENDAR().
What should I do to achieve the last table based on the data I have?
My relationship schema looks like this.

Answer 1

try this : 'Table 2' is your Calendar Table which is also a slicer on the visual.
Make sure that your Calendar Table's Date has a relation with the Hired Date and also the relation between the Department Table
Count of Emp =
VAR _latest =
MAX ( 'Table 2'[Date] )
VAR _from =
MIN ( 'Table 2'[Date] )
VAR _dept =
SELECTEDVALUE ( Department[Department] )
RETURN
CALCULATE (
COUNTX ( 'Table', 'Table'[ID ] ),
FILTER (
ALL ( 'Table' ),
'Table'[Terminated Date ] >= _from
&& 'Table'[Hired Date ] <= _from
&& 'Table'[Terminated (Y/N)] = "Y"
&& RELATED ( Department[Department] ) = _dept
)
)
+ CALCULATE (
COUNTX ( 'Table', 'Table'[ID ] ),
FILTER (
ALL ( 'Table' ),
'Table'[Terminated (Y/N)] = "N"
&& 'Table'[Hired Date ] <= _from
&& RELATED ( Department[Department] ) = _dept
)
)