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
Lux 4 TheHawks 4 -6.9
+0.0
BLConstruction 1 SwissTrillium 5 -1.7
+0.0
Week of 8/18100.0*Chowder Cup100.0*Average seed
SwissTrillium 2 IceDogs 3 +30.3
+0.7
Lux 7 BLConstruction 1 No
-0.4
StevesPizza 3 TheHawks 2 -0.1
Week of 8/25None
Points
Chance Will Make Playoffs