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
PondScum 2 Capitals 6 +9.8
+0.2
Week of 8/18100.0*Chance in playoffs100.0*Average seed
ThornyDevils 6 PondScum 2 +18.8
+0.2
TheHooligans 5 Capitals 2 Out
-0.2
Week of 8/25None
Points
Chance Will Make Playoffs