Annualizing Data to Include in Matrix Table with History

hI JST15 

To evaluate calculation by year and sum them up, use SUMX on a virtual table.

My Measure =
VAR MaxYear =
    CALCULATE ( MAX ( Dates[Year] ), ALLSELECTED ( Dates ) ) // Finds the max year in the Dates table based on current selection, use ALL to ignore slicer selections/filters on Dates
VAR MaxMonthNumber =
    MONTH ( CALCULATE ( MAX ( Dates[Date] ), ALLSELECTED ( Dates ) ) ) // Finds the month number of the max date in the Dates table based on current selection
RETURN
    SUMX (
        ADDCOLUMNS (
            SUMMARIZE ( Fact, Fact[Year] ),
            "@qty",
                IF (
                    Fact[Year] = MaxYear,
                    DIVIDE ( [Qty Measure], MaxMonthNumber ) * 12,
                    [Qty Measure]
                )
        ),
        [@qty]
    )