Lord Alfred
Striker
So they sold for 3/5 of what they paid. A similar ratio would see a bid of around £6,600,000 for Borini being accepted. Obviously evey deal is different but it's no outside the realms of possibility that they'd accept.
As I pointed out though you're comparing two signings who were signed by a duff DOF pre-Rodgers and a player who Rodgers has signed twice.