If you want to use quotas to control user output, bill your end-users, or just better understand what's coming out of your devices, you can create a pricing model in the StratoQ admin console.
It's pretty easy to do, just log into StratoQ.com as an admin and go to SETTINGS > Pricing. You can go down to the thousandth of a cent and specify prices for different types of output. Copies, USB prints, direct prints, and prints from StratoQ will all be counted.
After you've created a pricing model you'll see an extra column in the Stats tab with the currency you've selected.