Difference in Meter Reading Calculation based on dates

Hi harshagraj ,

I updated the formula of measure in the attached pbix file, please check if that is what you want.

Difference = 
VAR _shifttype =
    SELECTEDVALUE ( 'Table'[ShiftStartOrEnd] )
VAR _date =
    SELECTEDVALUE ( 'Table'[ReadingCaptureOn] )
VAR _shift =
    SELECTEDVALUE ( 'Table'[Shift Name] )
VAR _input =
    SELECTEDVALUE ( 'Table'[Input] )
VAR _ss1 =
    CALCULATE (
        SUM ( 'Table'[Value] ),
        FILTER ( 'Table', 'Table'[Shift Name] = "Shift 1"&&'Table'[Input]=_input&&'Table'[ReadingCaptureOn]=_date )
    )
VAR _ss2 =
    CALCULATE (
        SUM ( 'Table'[Value] ),
        FILTER ( ALLSELECTED('Table'), 'Table'[Shift Name] = "Shift 2"&&'Table'[Input]=_input&&'Table'[ReadingCaptureOn]=_date )
    )
VAR _ss3 =
    CALCULATE (
        SUM ( 'Table'[Value] ),
        FILTER ( ALLSELECTED('Table'), 'Table'[Shift Name] = "Shift 3" &&'Table'[Input]=_input&&'Table'[ReadingCaptureOn]=_date )
    )
VAR _es1 =
    CALCULATE (
        SUM ( 'Table'[Value] ),
        FILTER (
            ALLSELECTED ( 'Table' ),
            'Table'[Shift Name] = "Shift 1"
                && 'Table'[Input] = _input
                && 'Table'[ReadingCaptureOn] = _date + 1
        )
    )
VAR _es2 =
    CALCULATE (
        SUM ( 'Table'[Value] ),
        FILTER (
            ALLSELECTED ( 'Table' ),
            'Table'[Shift Name] = "Shift 2"
                && 'Table'[Input] = _input
                && 'Table'[ReadingCaptureOn] = _date + 1
        )
    )
VAR _es3 =
    CALCULATE (
        SUM ( 'Table'[Value] ),
        FILTER (
            ALLSELECTED ( 'Table' ),
            'Table'[Shift Name] = "Shift 3"
                && 'Table'[Input] = _input
                && 'Table'[ReadingCaptureOn] = _date + 1
        )
    )
RETURN   
    SWITCH (
        TRUE (),
        _shifttype = "Start"
            && _shift = "Shift 1", _ss1 - _ss2,
        _shifttype = "Start"
            && _shift = "Shift 2", _ss2 - _ss3,
        _shifttype = "Start"
            && _shift = "Shift 3", _ss3 - _es1,
        _shifttype = "End"
            && _shift = "Shift 1", _ss3 - _es1,
        _shifttype = "End"
            && _shift = "Shift 2", _es1 - _es2,
        _shifttype = "End"
            && _shift = "Shift 3", _es2 - _es3
    )

Best Regards