How are these numbers calculated?

Big Games

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

Week of 3/19100.0*Chance in playoffs100.0*Average seed
Devils B 1 Lions B 0 -4.0
-0.1
Week of 3/23100.0*Chance in playoffs100.0*Average seed
Redhawks B 2 Lions B 1 -30.2
-0.6
Devils B 5 Camb Women 0 -0.1
Week of 3/31None
Points
Chance Will Make Playoffs