calculation

Hi achanikya ,

Assume that you have the table data as below screenshot, you can create a measure as below to get it. Please find the details in the attachment.

Percent = 
VAR _2021 =
    CALCULATE ( SUM ( 'Table'[Value] ), 'Table'[Year] = 2021 )
VAR _2022 =
    CALCULATE ( SUM ( 'Table'[Value] ), 'Table'[Year] = 2022 )
VAR _percent =
    IF ( ISBLANK ( _2021 ) || _2021 = 0, BLANK (), DIVIDE ( _2022 - _2021, _2021 ) )
RETURN
    IF (
        ISINSCOPE ( 'Table'[Year] ),
        SUM ( 'Table'[Value] ),
        _percent
    )

What your raw data looks like? Could you please provide some sample data(exclude sensitive data) and your final expected result? Do you want to get the difference percentage between current year and previous year? Thank you.

Best Regards