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
TeamAmerica 5 Wolverines 4 +37.0
+0.7
StevesPizza 3 TeamAmerica 6 +21.8
+0.3
TheMightyPylons 4 DC 6 +3.3
+0.3
Week of 8/18100.0*Chowder Cup100.0*Average seed
DC 7 TeamAmerica 5 -41.3
-0.4
Wolverines 4 TheMightyPylons 1 -10.5
-0.1
Week of 8/25None
Points
Chance Will Make Playoffs