How are these numbers calculated?

Big Games

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

Week of 3/23100.0*Average seed
Samsquanch 7 Meatballs 3 -0.3
ThePeterNorthstars 1 SlushPuppies 3 -0.1
Blizzard 5 MightyPylons 5 +0.0
Week of 3/29None
Week of 4/8100.0*Average seed
Meatballs 2 ThePeterNorthstars 3 -0.1
YYZ 1 Blizzard 9 -0.1
Points
Chance Will Make Playoffs