'Inverting' Overview Graphs - Bottom 10 instead of Top 10

Does anyone know if it's possible to invert the devices that make it to the 'top' spot from an overview perspective? As I understand it, it's Top 10 that make it to these overview graphs -- what if I want to see the 'Bottom 10' on a given Overview Graph?

I imagine there is probably some complex datapoint that I can use to invert my value, but this would add to the complexity of the datasource, and I'd like to keep it simple if possible.