I'm really wanting a new bow for next season but I need to sell my current bow. I don't have a clue on used bow prices or trade in value. What would be a fair amount to ask for or expect from trading in my bow?

It's a 2010 Bear Charge with QAD HDX drop away rest. No sight or quiver, I'll be keeping those for the new bow. I think draw length is 27" and draw weight is 65 lbs.