I would like to suggest an enhancement regarding the graph symbology selector:
Add more comparative symbology styles to the symbol selected. Specifically, add a style similar to a pie graph, but the size of the piece indicates percentage.
Arc offers bar graphs, both side by side and stacked, and pie graphs as graphic symbology. The pie graph is inadequate for my purposes because it displays the data in the pie graph as a percent of the total value of the pie graph.
The preferred representation, which is accomplished by both the bar graph in the first ArcMAP image and the bubble graph in the second DrillingInfo.com image, shows values in the same location compared to eachother but as a percentage of each set of data. Thank you.