How are these numbers calculated?

Big Games

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

Week of 11/13100.0*Chance in playoffs100.0*Average seed
Sunny 3 Blades 3 In
-0.0
Winning 3 Broomsday 7 -0.4
-0.2
Week of 11/20100.0*Chance in playoffs100.0*Average seed
Sunny 8 Winning 0 +0.2
Broomsday 2 Blades 4 +0.2
Week of 11/27100.0*Chance in playoffs100.0*Average seed
Sunny 8 Winning 1 +0.3
Broomsday 2 Blades 2 +0.1
Points
Chance Will Make Playoffs