DAX - Define Store Type ( multiple may be req-if conditions)

Hi venug ,

Please create a calculated column as below.

Column = 
VAR code = 'Table'[Store Code]
VAR oct18 =
    CALCULATE (
        SUM ( 'Table'[Sales] ),
        FILTER ( 'Table', 'Table'[Store Code] = code && YEAR ( 'Table'[Date] ) = 2018 )
    )
VAR oct19 =
    CALCULATE (
        SUM ( 'Table'[Sales] ),
        FILTER ( 'Table', 'Table'[Store Code] = code && YEAR ( 'Table'[Date] ) = 2019 )
    )
VAR c =
    CALCULATE (
        COUNTROWS ( 'Table' ),
        FILTER ( 'Table', 'Table'[Store Code] = code && YEAR ( 'Table'[Date] ) = 2018 )
    )
RETURN
    IF (
        YEAR ( 'Table'[Date] ) > 2018,
        IF (
            oct18 > 0
                && oct19 > 0,
            "RS",
            IF (
                oct18 > 0
                    && oct19 <= 0,
                "LS",
                IF (
                    c <> BLANK ()
                        && oct18 <= 0
                        && oct19 > 0,
                    "ES",
                    IF ( oct19 > 0 && ISBLANK ( c ), "NS" )
                )
            )
        )
    )