Silva/Belfort did 725k; that is more than Rashad and Bones which is his biggest number thus far. Bones just isn't a huge draw yet. He does consistently good numbers but he has only really been in the spotlight for about a year and a half now.
These Silva/Bonnar promos are great I wouldn't be surprised if it did 500k despite almost no one thinking Bonnar has any kind of shot at winning.
There's no way in hell Silva/Bonnar does 500k.