Power BI Matrix: Dynamic Percentage Calculation Across Hierarchical Levels Using Field Parameters

I had a look

selectedParameter = TOJSON( Parameter )

Using this we can see the parameters being applied. The problem is the result of the measure is always in the same order, even when the visual has memory of the order of selection.

If you look at the query you can see in the query that the visual knows the order. But can't see anyway to surface the filter ordering. Had a look at SQL post on Field Parameter, and there is already a comment that confirms