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*Chance in playoffs100.0*Average seed
Sacramento 3 Swope Park 1 -5.2
-0.5
San Antonio 3 Seattle II 1 -3.3
Phoenix 2 St Louis 0 +0.5
+0.2
Reno 2 Tulsa 0 -0.3
-0.2
Week of 10/5100.0*Chance in playoffs100.0*Average seed
St Louis 1 Tulsa 0 -11.3
-0.3
San Antonio 3 Las Vegas 1 -11.0
-0.2
Week of 10/13100.0*Chance in playoffs100.0*Average seed
Swope Park 5 Los Angeles II 1 In
+1.0
San Antonio 1 RGV 1 -5.0
-0.1
Phoenix 0 Portland II 1 -0.1
St Louis 0 OKC 0 +0.1
Points
Chance Will Make Playoffs