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
Zamboozers 6 JusttheTip 3 Out
-0.2
Shocker 4 YYZ 7 +5.0
GhilaniElectric 5 District5 5 +0.1
Week of 8/18100.0*Chance in playoffs100.0*Average seed
JusttheTip 6 District5 4 +0.6
Week of 8/25None
Points
Chance Will Make Playoffs