How are these numbers calculated?

Big Games

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

Week of 8/17100.0*Chowder Cup100.0*Average seed
PWS 4 Jackals 4 No
-0.1
DudleyAvalanche 2 TheHooligans 4 +0.8
+0.1
PondScum 5 ThornyDevils 4 +0.1
Week of 8/25None
Week of 9/2None
Points
Chance Will Make Playoffs