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
TheHealthyScratches 4 Thunder 2 +14.4
+0.1
Draggins 3 NewEnglandProgeny 3 -4.4
-0.1
Week of 8/25100.0*Chowder Cup100.0*Average seed
Thunder 5 ThirstyTurtles 5 +9.6
+0.1
SledDogs 4 NewEnglandProgeny 8 +1.7
+0.1
Week of 9/2100.0*Chowder Cup100.0*Average seed
Thunder 3 NewEnglandProgeny 1 No
-0.5
Points
Chance Will Make Playoffs