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
Tulsa 2 Sacramento 3 +4.7
+1.1
Las Vegas 4 San Antonio 2 +1.6
+0.1
Col Springs 2 Los Angeles II 0 +1.4
+0.2
New Mexico 1 RGV 1 +0.6
+0.1
Portland II 3 Phoenix 5 +0.6
+0.0
Reno 0 El Paso 0 -0.1
-0.0
Orange County 2 OKC 0 -0.1
El Paso 1 Austin 1 +0.2
Week of 10/11100.0*Chance in playoffs100.0*Average seed
Sacramento 2 Orange County 3 -1.3
El Paso 4 Portland II 1 -0.3
Phoenix 1 Salt Lake II 2 -0.2
Tulsa 2 New Mexico 1 +0.1
Fresno 2 Los Angeles II 2 +0.0
Salt Lake II 2 Austin 2 +0.0
Week of 10/18100.0*Chance in playoffs100.0*Average seed
Salt Lake II 3 Sacramento 0 -0.5
Tacoma 3 Austin 1 +0.5
Orange County 2 Fresno 0 -0.1
Los Angeles II 2 El Paso 0 +0.1
Points
Chance Will Make Playoffs