How to get difference between two columns in Matrix based on slicer selection of Year in Power Bi

Hi Anonymous 
Here you go https://www.dropbox.com/t/sMyzwonHckNHvdKX
Original Measure code remains the same

Measure = COUNTROWS ( DISTINCT ('Table'[Value] ) )

New Measure code is

Measure1 = 
VAR MaxYear = MAX ( 'Table'[Year] )
VAR MinYear = MIN ( 'Table'[Year] )
VAR MaxYearValue =
    CALCULATE ( 
        [Measure],
        'Table'[Year] = MaxYear
    )
VAR MinYearValue =
    CALCULATE ( 
        [Measure],
        'Table'[Year] = MinYear
    )
VAR Difference = MaxYearValue - MinYearValue
VAR Result =
    SWITCH (
        TRUE,
        NOT HASONEVALUE ( 'Table'[Year] ), Difference,
        COUNTROWS ( ALLSELECTED ('Table'[Year] ) ) = 1, BLANK(),
        [Measure]
    )
RETURN
    Result