How are these numbers calculated?

Big Games

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

Week of 10/23100.0*Chance in playoffs100.0*Average seed
Calgary 30 Edmonton 7 In
+0.5
Saskatchewan 33 BC 30 +0.0
Week of 10/30100.0*Chance in playoffs100.0*Average seed
BC 26 Calgary 28 +0.2
Hamilton 24 Saskatchewan 6 +0.1
Week of 11/6100.0*Chance in playoffs100.0*Average seed
Saskatchewan 30 Calgary 14 -0.6
Games Above .500
Chance Will Make Playoffs