Filter on sumx function

[Tripb44]

I am trying to add a dynamic filter on one of my measures.  I need the sumx but to filter dynamically on the selected date.  Below is my current measure that I am trying to work through.  

[PaulDBrown]

SUMX expects a table expression and an aggregation expression. Your SUMX includes a VALUES expression (another table expression) where the aggregation should be. So remove the VALUES expression.