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*Chance in playoffs100.0*Average seed
Blizzard 0 SlushPuppies 1 -53.5
-0.5
Meatballs 6 YYZ 6 -2.9
-0.3
Week of 8/25100.0*Chance in playoffs100.0*Average seed
PlanB 8 YYZ 3 Out
-0.3
Week of 9/2None
Points
Chance Will Make Playoffs