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*Chowder Cup100.0*Average seed
Lightning 2 RustyBlades 1 +28.0
+0.1
+0.5
DudleyAvalanche 5 FlatPennyBarGrille 5 +9.0
+0.1
+0.1
PWS 1 SilverBullets 6 +6.8
No
+0.1
Week of 8/18100.0*Chance in playoffs100.0*Chowder Cup100.0*Average seed
SilverBullets 1 FlatPennyBarGrille 3 -23.3
-0.5
PWS 2 RustyBlades 8 In
+0.2
Lightning 0 Local1156 1 -6.4
-0.4
Week of 8/25None
Points
Chance Will Make Playoffs