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
BLConstruction 1 SwissTrillium 5 In
+19.4
+0.8
Lux 4 TheHawks 4 -2.0
+2.8
+0.1
Week of 8/18100.0*Chance in playoffs100.0*Chowder Cup100.0*Average seed
SwissTrillium 2 IceDogs 3 No
-0.8
Lux 7 BLConstruction 1 -5.5
-0.3
Week of 8/25None
Points
Chance Will Make Playoffs