How to include a string text infront of the numbers displayed? When I include that as ='Total'&(Expression) the bubble sizes become uniform and maps become cluttered.
In scatter chart only X and Y has the option of 'show level'. And while using Scatter chart as a Map the first two expressions will be latitude and longitude.
So if you can add your function expression to the Dimension using Aggr() function then you can use the Dimension level on the chart.