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*Chowder Cup100.0*Average seed
Blizzard 8 Neoscape 3 -15.8
-0.2
Week of 8/18100.0*Chowder Cup100.0*Average seed
LuckyPucks 8 Blizzard 4 +38.0
+0.4
GhilaniElectric 5 Neoscape 4 -25.6
-0.3
Dangleberries 2 Neoscape 2 -16.7
-0.2
Blizzard 4 TheCranston 3 -11.3
-0.1
Week of 8/25None
Points
Chance Will Make Playoffs