Multiple arguments are not allowed in the ALLSELECTED function when the first argument is a table re

SkorpionAAM , Try like

SUMx('Calculation',[Requeird pop*0.45]) * ALLSELECTED('Operation Cost'[Operation Cost])

refer: https://docs.microsoft.com/en-us/dax/allselected-function-dax

https://www.sqlbi.com/articles/the-definitive-guide-to-allselected/

Hi，SkorpionAAM 

The syntax of ALLSELECTED is incorrect.

The ALLSELECTED function returns the context of the query without any column and row filters.

If there is one argument, the argument is either tableName or columnName.

If there is more than one argument, they must be columns from the same table.

But ALLSELECTED  maybe is not the best way to solve it, you can try like this to meet your needs，

Measure =SUMX ( 'Calculation', [Requeird pop*0.45] ) * SELECTEDVALUE ( 'Operation Cost'[Operation Cost] )

Or

Measure =SUMX ( 'Calculation', [Requeird pop*0.45] ) * MAXX( 'Operation Cost'[Operation Cost] )

If you want to learn more about it ,you can refer to : https://docs.microsoft.com/en-us/dax/allselected-function-dax

Hope it helps.

Best Regards,

Caitlyn Yan

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