How are these numbers calculated?

Big Games

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

Week of 9/9100.0*Chance in playoffs100.0*Average seed
Swope Park 3 Tulsa 0 +9.5
+0.5
San Antonio 1 St Louis 3 +4.5
+0.2
Salt Lake City 0 Orange County 2 -2.5
-0.0
Salt Lake City 2 San Antonio 0 +0.9
+0.0
OKC 2 Seattle 2 +0.5
+0.1
Los Angeles 1 RGV 0 -0.3
-0.2
RGV 0 Portland 1 -0.2
Arizona 1 Portland 2 -0.1
Los Angeles 1 Sacramento 1 +0.0
Week of 9/17100.0*Chance in playoffs100.0*Average seed
Vancouver 0 Portland 2 -1.9
+0.2
OKC 0 Swope Park 3 In
+1.1
Orange County 0 RGV 1 +1.6
+0.0
Arizona 3 Salt Lake City 2 +1.4
+0.0
Col Springs 2 Seattle 1 +0.9
San Antonio 2 Tulsa 0 -0.7
Tulsa 1 Swope Park 3 +0.6
Vancouver 2 OKC 1 +0.1
Sacramento 1 Los Angeles 1 -0.0
Week of 9/24100.0*Chance in playoffs100.0*Average seed
Swope Park 2 Seattle 0 +0.3
Los Angeles 3 Salt Lake City 1 -0.2
RGV 3 San Antonio 0 -0.1
Points
Chance Will Make Playoffs