Running Total DAX Calculation returning incorrect result

Hello,

I am new to PowerBi and would like to add a Running Total with two filters for Country and Registered Month included, to my Dashboard. 

Number_of_Districts is to be incremented, and I want to display the chart after the trends filtered by Registered Month and Country, like so:

I have used the line chart, and created a new measure for the value field, with the following DAX code:

Running Total = CALCULATE (

    SUM ( 'Number_of_People_to_Districts'[Number of Districts] ),

    FILTER (

        ALL ( 'Number_of_People_to_Districts' ),

        'Number_of_People_to_Districts'[Country] <= MAX('Number_of_People_to_Districts'[Country])

        &&

        'Number_of_People_to_Districts'[Registered Month] <= MAX ( 'Number_of_People_to_Districts'[Registered Month] )

    )

)

Unfortunately, when I compared the result with a calculation in Tableau, there was a discrepancy. The returning results are incorrect, but I have not found the error yet.

Thanks & BR