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
BeerCats 3 Grizzlies 4 +0.8
AngryHammers 1 StevenSeagulls 2 +0.2
BeerCats 4 Grizzlies 3 -0.1
Week of 8/26None
Week of 9/5None
Points
Chance Will Make Playoffs