Running Totals - How do you stop the run-on

[efstel]

I ran a measure to get the running billings of a project by MonthYearNumber to keep it simple. But how to I stop the line/data from running on forever and limit it to the last date of data provided. I can filter it, but I have hundreds of projects and I don't want to have to filter it on each project. 

BilledAmt running total in MonthYearNumber =

CALCULATE(

    SUM('JobBillingData'[BilledAmt]),

    FILTER(

        ALLSELECTED('Calendar'[MonthYearNumber]),

        ISONORAFTER('Calendar'[MonthYearNumber], MAX('Calendar'[MonthYearNumber]), DESC)

        )

    )

[efstel]

Boom @Greg_Deckler! Works like a champ!!  

[Greg_Deckler · Accepted solution]

@efstel I would recommend this approach: Better Running Total - Microsoft Fabric Community

But, even with what you have, you should be able to do this:

Measure = 
  VAR __Rows = COUNTROWS('JobBillingData')
  VAR __Result = IF( __Rows = BLANK(), BLANK(), [BilledAmt running total in MonthYearNumber])
RETURN
  __Result