How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 8/19100.0*Chowder Cup100.0*Average seed
Lumberhacks 4 WheelTeam6 6 +11.2
+0.3
BoondockSaints 4 WildTurkeys 8 +7.3
+0.2
Royals 8 YYZ 6 +5.9
+0.1
Week of 8/26None
Week of 9/3100.0*Chowder Cup100.0*Average seed
WildTurkeys 5 YYZ 2 Yes
+0.9
Points
Chance Will Make Playoffs