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 In
+0.3
Toronto 26 Hamilton 24 -2.0
Ottawa 17 Montreal 23 -0.3
Calgary 40 Saskatchewan 27 +0.1
Week of 10/31100.0*Chance in playoffs100.0*Average seed
Edmonton 37 BC 3 -0.1
Week of 11/7100.0*Chance in playoffs100.0*Average seed
Saskatchewan 24 Edmonton 17 -0.6
BC 16 Calgary 33 -0.1
Games Above .500
Chance Will Make Playoffs