The outside blue field on the pie chart has no title when you hover over it (purchases under $5000).

And having the text be upside down for half of the chart is pretty bad (another way to do it: http://media.treehugger.com/assets/images/2015/07/pie-chart-...)

This comment is meant in good faith, it's an important story and topic and visualizing the impact is very useful. I appreciate the work that went into it.

edit: I just noticed you can click on the fields, very cool!