Dynamic Measure Required with two slicer

Hi, I could not access to the googledrive, but I tried to create a sample pbix file like below.

Please check the below picture and the attached pbix file whether it suits your requirement.

 

 

 

Fix: = 
CALCULATE (
    SUM ( Data[Value] ),
    REMOVEFILTERS ( Period ),
    Period[Period Number] = 0
)

 

Selected period: = 
SUM( Data[Value])

 

 

OFFSET function (DAX) - DAX | Microsoft Learn

 

Previous period: = 
VAR _previousperiodnumber =
    MAX ( Period[Period Number] ) - 1
VAR _condition = _previousperiodnumber <> 0
RETURN
    IF (
        _condition,
        CALCULATE (
            SUM ( Data[Value] ),
            OFFSET (
                -1,
                ALL ( Period[Period Number], Period[Period] ),
                ORDERBY ( Period[Period Number], ASC )
            )
        )
    )

 

Selected period fix: = 
[Selected period:] - [Fix:]

 

Diff: = 
[Selected period:] - [Previous period:]