How are these numbers calculated?

Big Games

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

Week of 8/20100.0*Average seed
MelloYello 0 HolyCow 1 -0.8
Blueliners 5 FiveMinuteMajors 4 +0.2
DocksideBison 2 HolyCow 5 -0.2
MelloYello 5 BeerOClock 4 +0.1
Week of 8/27100.0*Average seed
DeathKnights 4 FiveMinuteMajors 2 +0.4
Week of 9/4100.0*Average seed
Blueliners 6 FiveMinuteMajors 5 +0.3
Points
Chance Will Make Playoffs