Display the values of 4 columns in a pie chart

[jumpinglion]

Hi there,

I have an aggregate table where four columns are different total counts that are equivalent to the entire count for that row. I want to display the values of those 4 columns in a pie chart.  Currently I have them defined as measures of the sum type. 

That works well for doing stacked area graphs, but for some reason it doesn’t allow for a pie graph.  Any ideas on how to make a pie graph from the data?

Thank you