How are these numbers calculated?

Big Games

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

Week of 10/24100.0*Chance in playoffs100.0*Average seed
Winnipeg 23 BC 28 Out
-0.1
Toronto 26 Hamilton 24 -0.1
Ottawa 17 Montreal 23 -0.0
Week of 10/31None
Week of 11/7100.0*Chance in playoffs100.0*Average seed
Toronto 23 Ottawa 5 -0.0
Games Above .500
Chance Will Make Playoffs