How to refer the same period for 3 consecutive days starting from last working day of current month

[beginner]

I am trying to run below date filter every month starting from last working day of the current month to filter last 12 calendar months. So let's say we start today it will show 3/1/2022-2/28/2023. It runs for 3 days but it always need to show 3/1/2022-2/28/2023. I do this for 3 times. March 1st, March 2nd, and March 3rd still need to show 3/1/2022-2/28/2023. Next month same process with last calendar 12 months. I can't find why my measure is not working. 

Saledate is_current year =
var last12_month=EOMONTH(TODAY(),-12)
var last12_month_startdate=DATE(YEAR(last_12_month),MONTH(last_12_month),1)
var lastmonth=DATE(YEAR(TODAY()),MONTH(TODAY()),1)
return
IF('Table'[Saledate]>=last_12_month_startdate&&'Table'[Saledate]<=last_month,1,0)

[lbendlin]

 I do this for 3 times. March 1st, March 2nd, and March 3rd still need to show 3/1/2022-2/28/2023.

What should happen for March 4th?

[beginner]

Continue to apply the filter until next last working day of the month which will be 03/31/2023