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*Average seed
Montreal 36 Hamilton 5 -0.4
Winnipeg 20 Toronto 26 -0.1
Week of 10/24100.0*Average seed
Hamilton 27 Montreal 24 +0.3
Toronto 36 Winnipeg 21 -0.0
Week of 11/2None
Games Above .500
Chance Will Make Playoffs