There are a lot of ways of looking at this data. But if it's usage based I would suggest ranking things by revenue to see what types of customers are the most valuable.

  10% comes from the top 0.1% who spend at least X$, 
  10% comes from 0.1%-0.9% who spend at least Y$
  etc.

Or if you have some category's like 5$/month accounts = X% of revenue 50$/month accounts = Y% etc.

The value is to know what types of users you should focus on just be careful as you need a lot of data to make some of this stuff meaningful.