How are these numbers calculated?

Big Games

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

Week of 10/18100.0*Chance in playoffs100.0*Average seed
Winnipeg 20 Toronto 26 In
Montreal 36 Hamilton 5 +0.2
Week of 10/24100.0*Chance in playoffs100.0*Average seed
Hamilton 27 Montreal 24 -0.3
Week of 11/2None
Games Above .500
Chance Will Make Playoffs