How are these numbers calculated?

Big Games

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

Week of 8/17100.0*Average seed
Eagles 3 AngryHammers 3 -0.5
SilverBullets 2 SpruceStTavern 2 +0.2
Misfits 6 Icemen 2 -0.2
Week of 8/25None
Week of 9/2None
Points
Chance Will Make Playoffs