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*Chance in playoffs100.0*Average seed
Col Springs 3 Austin 0 Out
-0.3
Austin 2 Seattle 1 +0.2
+0.3
Portland 0 Col Springs 1 +0.1
Week of 9/12100.0*Chance in playoffs100.0*Average seed
Seattle 3 Austin 2 -0.3
Los Angeles 0 Portland 1 -0.2
Arizona 0 OKC 1 +0.2
Portland 0 Sacramento 3 +0.1
Salt Lake City 1 Arizona 0 +0.1
Vancouver 1 Orange County 1 -0.1
Week of 9/19100.0*Chance in playoffs100.0*Average seed
Vancouver 2 Austin 3 +1.4
Sacramento 0 Arizona 0 -0.1
Points
Chance Will Make Playoffs