How are these numbers calculated?

Big Games

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

Week of 9/5100.0*Average seed
Montreal 2 New York 0 +0.4
Toronto 3 Montreal 2 -0.4
Charlotte 4 Toronto 1 +0.2
Week of 9/12100.0*Average seed
Montreal 0 Harrisburg 5 -0.3
St Louis 2 Charlotte 0 -0.3
Richmond 2 Toronto 1 +0.1
Week of 9/19100.0*Average seed
Wilmington 2 Toronto 2 +0.1
Points
Chance Will Make Playoffs