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
TonyMontana 8 SlushPuppies 4 +19.2
+1.0
Zamboozers 6 JusttheTip 3 -12.1
-0.2
TheRoughriders 3 JoeysBar 9 -1.8
-0.1
Week of 8/18100.0*Chowder Cup100.0*Average seed
Saints 1 TonyMontana 5 +24.7
+0.8
Zamboozers 10 Lumberhacks 4 No
-0.2
JoeysBar 6 SlushPuppies 11 +0.0
Week of 8/25None
Points
Chance Will Make Playoffs