dax measure to calculate number of users with NO activity in last N dates

[Anonymous]

Hi,

I have a requirement where i need to calculate the number of users who did not use a system for the last 7 days.

I tried the below and gave me correct number but the table visual displaying columns Subsystem,Last_used,username is not filtering based on the measure and subsystem slicer

CALCULATE(counta(Users[username]),Date[FullDate]<TODAY()-7)

Users Fact: username ,last_used columns,system

Date Dim: FullDate,Year,Month columns

FullDate is related to last_used column

How do i achieve this as measure.

Aso,if someone can suggest how to pass the relative slicer value to the measure that counts number of users NOT using system in last N days,it will be great.