Wrong sum with Lastdate

[SuppiLo]

I have forecast table with monthly basis forecasts. Forecasts only show current month and future dates. So I need to calculate last sums from previous forecasts.

My measure is currently:

CALCULATE

      SUM( Forecast[Plan] ),

      LASTDATE ( Forecast[ForecastFileDate] )

)

As you can see, measure works correctly except total is wrong. It only sums from latest forecast which is August.

I tried also with:

CALCULATE(

    SUM( Forecast[Plan] ),

    FILTER(

        ALL( Forecast[ForecastFileDate] ), Forecast[ForecastFileDate] = MAX( Forecast[ForecastFileDate] )

) )

But it gives me same result as LASTDATE.

I have date table with inactive relationship with Date -> ForecastFileDate

[Greg_Deckler]

@SuppiLo This looks like a measure totals problem. Very common. See my post about it here: https://community.powerbi.com/t5/DAX-Commands-and-Tips/Dealing-with-Measure-Totals/td-p/63376

Also, this Quick Measure, Measure Totals, The Final Word should get you what you need:
https://community.powerbi.com/t5/Quick-Measures-Gallery/Measure-Totals-The-Final-Word/m-p/547907

[SuppiLo · Accepted solution]

Thanks for the reply.

That didn't help since I didn't know how to calculate history dates.

I ended with this measure:

CALCULATE(

SUM ( Forecast[Plan] ),

FILTER( Forecast, Forecast[ForecastFileDate] = Forecast[Date] )

)

Then I summed future dates from latest file and now totals work correctly.