How are these numbers calculated?

Big Games

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

Week of 3/13100.0*Chance in playoffs100.0*Average seed
FlyingCamels 3 Meatballs 1 -19.3
-0.5
FlyingCamels 2 PeterNorthstars 7 -5.0
-0.0
BallardBulldogs 5 ThornyDevils 2 -0.2
Week of 3/20None
Week of 3/28None
Points
Chance Will Make Playoffs