How are these numbers calculated?

Big Games

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

Week of 8/11100.0*Chance in playoffs100.0*Average seed
Wolfpack 2 IceHoles 3 In
+0.7
TheThirstyTurtles 9 Draggins 3 -3.4
+0.1
Week of 8/18100.0*Chance in playoffs100.0*Average seed
IceHoles 3 SJCKings 2 +0.5
TheThirstyTurtles 3 CCCP 9 +0.2
Wolfpack 6 MorleysDog 4 -0.2
Week of 8/25None
Points
Chance Will Make Playoffs