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
Meatballs 3 Saints 6 +10.8
+0.4
Shocker 4 YYZ 7 -1.9
-0.2
Week of 8/18100.0*Chowder Cup100.0*Average seed
Meatballs 1 Shocker 0 No
-0.3
Saints 1 TonyMontana 5 No
-0.6
YYZ 3 GhilaniElectric 9 +8.4
+0.3
Week of 8/25None
Points
Chance Will Make Playoffs