Forecast help

hello, 

i have this measure 

Forcast2 = 
var __DerniereDateCompta = CALCULATE(max(COMPTA[Date compta]),REMOVEFILTERS())
var __CurrentDate = max('Calendar'[Date])
var __Forcast = CALCULATE([TotalBudget],KEEPFILTERS('Calendar'[Date]>__DerniereDateCompta))
var __TotalCompta = [COMPTA]
var __Reultat = __TotalCompta+__Forcast
return

__Reultat

and i have this matrix

my question : if the __DerniereDateCompta  = 15 AVRIL (i havent amount, its normal because i use keepfilter

i would like to have the TotalBUDGET in the Forcast Measure with the good grand total 🙂 

anybody have an idea ?

thanks a lot