How are these numbers calculated?

Big Games

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

Week of 8/25None
Week of 9/1100.0*Average seed
Red Bulls 0 Fire 1 -0.2
Week of 9/8100.0*Average seed
Miami Fusion 3 DC United 1 +0.4
Fire 2 FC Dallas 2 -0.0
Points
Chance Will Make Playoffs