How are these numbers calculated?

Big Games

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

Week of 8/22None
Week of 8/29100.0*Chance in playoffs100.0*Chowder Cup100.0*Average seed
Winterhawks 2 YYZ 3 -46.6
No
-3.0
Lumberhacks 7 LuckyPucks 1 +4.2
No
+0.1
CarpetAngels 7 Bananaland 3 +4.1
No
+0.1
Lumberhacks 2 CarpetAngels 9 +0.5
No
+0.0
Points
Chance Will Make Playoffs