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
TheThirstyTurtles 9 Draggins 3 In
+1.2
Wolfpack 2 IceHoles 3 -4.7
-0.2
Week of 8/18100.0*Chance in playoffs100.0*Average seed
IceHoles 3 SJCKings 2 -0.2
TheThirstyTurtles 3 CCCP 9 -0.2
Week of 8/25None
Points
Chance Will Make Playoffs