How can i compare different values? (which are grouped)

Hi Anonymous,

You can try to use following measure formula to compare particular value (twelve month ago) and current value:

Measure=
VAR GroupedTable =
    SUMMARIZE (
        ALLSELECTED ( 'Sales' ),
        'Smart Date'[Date Look Up],
        "New Value", SUM ( 'Sales'[Value] )
    )
VAR currDate =
    MAX ( 'Smart Date'[Date Look Up] )
RETURN
    MAXX (
        FILTER (
            GroupedTable,
            [Date Look Up]
                = DATE ( YEAR ( currDate ), MONTH ( currDate ) - 12, DAY ( currDate ) )
        ),
        [New Value]
    )
        - MAXX ( FILTER ( GroupedTable, [Date Look Up] = currDate ), [New Value] )

If above not help, can you please share some sample data to help us clarify your data structure and requirement?

Regards,

Xiaoxin Sheng