Why are you asking? Are you having a problem with it?
I'm getting close to an academy ticket, so maybe I'll be able to let you know. I was in a similar situation, though - one of the academy challenges required you to enter a SNG which was a satellite for a larger tournament. I won the SNG, but would not have been able to play in the tournament so I unregistered for it. At that point, I had 12 tournament dollars in my account. I saw that I could convert it to cash for a 5% (I think) fee if I wanted to use it in a ring game. Instead of that, I was able to use it for the entry fee into regular SNG's at no discount. After several of those, I had less than a full entry, but I was still able to use that plus some of my own cash to enter another SNG.