How are these numbers calculated?

Big Games

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

Week of 3/16100.0*Chance in playoffs100.0*Average seed
PatsieDugans 5 PeterNorthstars 9 -0.1
-0.5
YYZ 8 GhilaniElectric 7 In
SlushPuppies 7 Neoscape 1 -0.1
Week of 3/23100.0*Chance in playoffs100.0*Average seed
Meatballs 6 PatsieDugans 3 -0.1
CobraKai 2 YYZ 9 +0.0
Week of 4/1None
Points
Chance Will Make Playoffs