How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 8/19100.0*Average seed
FraminghamJets 4 Lumberhacks 3 -0.4
PeterNorthstars 5 DirtyMikeandtheBoys 6 -0.1
Winterhawks 8 IceDogs 3 -0.1
PlanB 5 Meatballs 2 +0.1
Week of 8/26100.0*Average seed
PuckBuddies 5 Lumberhacks 3 -0.5
MooseKnuckles 0 DirtyMikeandtheBoys 1 -0.2
Week of 9/5None
Points
Chance Will Make Playoffs