How are these numbers calculated?

Big Games

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

Week of 10/5100.0*Chance in playoffs100.0*Average seed
Portland II 3 Phoenix 5 -6.8
-0.5
Col Springs 2 Los Angeles II 0 +2.9
+0.1
Las Vegas 4 San Antonio 2 +1.3
-0.1
New Mexico 1 RGV 1 +0.7
Tulsa 2 Sacramento 3 -0.4
Orange County 2 OKC 0 -0.3
+0.1
Reno 0 El Paso 0 -0.2
El Paso 1 Austin 1 +0.1
Week of 10/11100.0*Chance in playoffs100.0*Average seed
Portland II 3 San Antonio 4 -8.1
-0.9
El Paso 4 Portland II 1 Out
-0.3
Fresno 2 Los Angeles II 2 -0.2
Las Vegas 0 Reno 2 +0.1
+0.1
Tulsa 2 New Mexico 1 +0.1
OKC 0 RGV 2 +0.1
Week of 10/18100.0*Chance in playoffs100.0*Average seed
RGV 2 Portland II 1 -0.8
Phoenix 3 OKC 1 +0.2
Points
Chance Will Make Playoffs