How are these numbers calculated?

Big Games

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

Week of 4/22100.0*Chance in playoffs100.0*Chowder Cup100.0*Average seed
Wolves 6 MorleysDog 3 -11.1
-8.9
-1.3
SilverBullets 4 Misfits 1 -1.8
-0.1
Warhawks 2 Mermen 6 -1.5
-0.1
Hellfish 1 Wolves 0 -0.2
SilverBullets 5 Mermen 2 +0.0
Week of 5/5None
Week of 5/6None
Points
Chance Will Make Playoffs