How are these numbers calculated?

Big Games

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

Week of 9/29100.0*Average seed
Phoenix 2 St Louis 0 +0.4
Sacramento 3 Swope Park 1 -0.1
Salt Lake II 0 Col Springs 2 +0.1
Sacramento 1 Portland II 0 -0.0
Week of 10/5100.0*Average seed
Las Vegas 5 Phoenix 2 -0.4
Orange County 2 Seattle II 1 -0.2
Los Angeles II 1 Sacramento 2 -0.2
Phoenix 0 Reno 0 -0.0
Week of 10/13100.0*Average seed
Phoenix 0 Portland II 1 -0.3
Sacramento 1 Las Vegas 0 -0.3
Points
Chance Will Make Playoffs