How are these numbers calculated?

Big Games

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

Week of 8/19100.0*Chowder Cup100.0*Average seed
Stiffs 2 BeardedClams 6 No
-0.1
PapaGenos 0 BeardedClams 6 -0.3
Week of 8/26None
Week of 9/3100.0*Chowder Cup100.0*Average seed
PapaGenos 7 Stiffs 1 +0.3
ThermonuclearZebras 0 Mulligans 1 +0.3
Points
Chance Will Make Playoffs