How are these numbers calculated?

Big Games

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

Week of 10/21100.0*Average seed
Saskatchewan 14 Montreal 19 -0.6
Calgary 31 Toronto 13 +0.0
Week of 10/28100.0*Average seed
Saskatchewan 6 BC 24 -0.3
Montreal 17 Calgary 8 +0.2
Week of 11/4100.0*Average seed
Edmonton 41 Toronto 17 +0.2
Games Above .500
Chance Will Make Playoffs