How are these numbers calculated?

Big Games

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

Week of 9/18100.0*Average seed
Baltimore 2 RailHawks 4 -0.3
St. Louis 2 Aztex 1 -0.1
Rowdies 1 Stars 3 +0.1
Miami FC 4 St. Louis 2 -0.1
Week of 9/25100.0*Average seed
Baltimore 1 Timbers 3 -0.2
Week of 10/2None
Points
Chance Will Make Playoffs