Rolling average

Hi setis 

You're almost there but your AVERAGEX is iterating over Calendar[Date], I think this needs to be Calendar[Month].

Try this:

Avrg Invoiced of CA 12M =
CALCULATE (
    AVERAGEX (
        VALUES ( Calendar[Month] );
        [Invoiced of CA]
    );
    DATESINPERIOD (
        Calendar[Date];
        LASTDATE ( Calendar[Date] );
        -12;
        MONTH
    )
)

Best regards,

Martyn

If I answered your question, please help others by accepting it as a solution.

Values is used to use distinct values. Means if should group at day level

Avrg Invoiced of CA 12M = 
CALCULATE(
    AVERAGEX(VALUES(Calendar[Date]);[Invoiced of CA]) ;
    DATESINPERIOD(
        Calendar[Date];
        LASTDATE(Calendar[Date]);
        -12;
        MONTH
    )
)

Try

Avrg Invoiced of CA 12M = 
CALCULATE(
    AVERAGEX(VALUES(Calendar[Month-Year]);[Invoiced of CA]) ;
    DATESINPERIOD(
        Calendar[Date];
        LASTDATE(Calendar[Date]);
        -12;
        MONTH
    )
)