Add Total using DAX

Hi , Anonymous 

According to your description, you want to add a total row in your table visual.Here are the steps you can refer to:
(1)My test data is the same as yours.

The table relationship is that:

(2)Due to we have no right row headers , we need to click "New Table" to create a table as row headers in table visual:

Row headers = UNION( EXCEPT( ALL('Table 1'[Places]) ,  ALL('Table 2'[Places])) , DISTINCT('Table 2'[Capital])  )

(3)Then we can create a measure :

Measure = var _places = VALUES('Table 1'[Places])
var _capitals = VALUES('Table 3'[Capitals])
var _cur = MAX('Row headers'[Places])
var _total = CALCULATE( SUM('Table 3'[Value]))
var _sum = CALCULATE( SUM('Table 3'[Value]), TREATAS({_cur},'Table 3'[Capitals]))
return
IF(_cur in _places , _total , IF(_cur in _capitals , _sum,BLANK()))

 (4)Then we can put the field we need on the visual and we can meet your need:

Thank you for your time and sharing, and thank you for your support and understanding of PowerBI! 

Best Regards,

Aniya Zhang

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