Cumulative Open Actions Dax issues

[Keco5050]

I'm experiencing troubles with the syntax, which is right, but I want to be able to move values month by month, for example.

IF 

Jan as 5 values

feb as 0 values

March 2 values 

i want to see this result 
Jan with 5 values 

feb with 5 values 

March with 7 values 

i want to be able to see this kind of result but what i have with the dax before is different 

Jan ..5 values

March 7 values 

as you can see it leavng out the feb even thou as no Values i want to see the jan value move to the feb  i will greatful if i can find solution to this urgently

Cumulative Open Actions 

                      = VAR CurrentDate = MAX('Action Tracker'[Date of Action])

                      RETURN

                           SUMX( FILTER (
                                        ALLSELECTED('Action Tracker'[Date of Action]),                       

                                       'Action Tracker'[Date of Action] <= CurrentDate
                     ),
               CALCULATE(
                            COUNTROWS(
                               FILTER( '
                                       Action Tracker',
                                      'Action Tracker'[Current Status] = "Open"
                                   )
                            ),
                               ALLEXCEPT('Action Tracker', 'Action Tracker'[Date of Action])

                               )

)

[Dangar332]

HI, @Keco5050 

as i understood  you can try below

here is my data

here out put as a measure

logic behind cumilative sum is below

result = 
CALCULATE(SUM(**bleep**[sales]),**bleep**[date]<=MAX(**bleep**[date]))

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