Running total for a measure using two different measures depending on the month

[itskool]

Hi Power BI community, 

My situation is following:

I have forecast and actual values, I nees to show actuals for past month and forecast for future month.

For that I created a column in my DimMonths table to identify is the month is in the past or in the future and created measure, which works fine.

Forecast/actuals hours =

IF(

    AVERAGE(DimMonths[Future Month?]) = 0,

    [Actuals hours],

    [Forecast hours w/o generic roles]

    )

However, the problem starts when I try to calculate the running total - this measure only sums up the forecast values, also from the past months:

Forecast/actuals hours RT = CALCULATE (

    [Forecast/actuals hours],

    FILTER (

        ALLSELECTED(  DimMonths ),

        DimMonths[Month Sort] <= MAX ( DimMonths[Month Sort] )

    )

)

I understand this is because of this part of the first formula: AVERAGE(DimMonths[Future Month?]) = 0,

but I have no idea how to fix it.

Does anyone have any ideas or had a similar case?

[lbendlin]

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