How are these numbers calculated?

Big Games

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

Week of 10/14100.0*Average seed
Toronto 40 Ottawa 27 +0.1
Week of 10/20100.0*Average seed
Winnipeg 45 Edmonton 25 -0.1
Saskatchewan 26 Toronto 29 +0.1
Games Above .500
Chance Will Make Playoffs