Yeah it's obviously supposed to read "% CPU utilization" but it still doesn't make sense to me.
What the hell is it doing processing that much stuff at idle? Idle means to me that you're not running any applications and just letting the computer sit there. That would entail no harddrive access happening.
Essentially, if you're using 25% of the CPU...you aren't idling. What is it doing?
Using nearly 100% CPU is also astounding.
So we go and google and it seems like this is the result of it not working properly.
https://www.google.com/search?q=revodrive+CPU+use