How are these numbers calculated?

Big Games

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

Week of 8/23100.0*Chance in playoffs100.0*Average seed
Orange County 1 Wilmington 2 +21.3
+1.4
Wilmington 3 Orlando 1 +21.1
+1.1
Los Angeles 3 Wilmington 3 +2.2
+0.1
Seattle 5 Arizona 1 +1.8
+0.1
Rochester 2 Harrisburg 2 +1.1
+0.1
Pittsburgh 3 Dallas 1 -0.8
-0.1
Charlotte 0 Pittsburgh 1 +0.7
+0.1
OKC 0 Charleston 2 +0.5
-0.1
Sacramento 3 Charleston 1 +0.1
+0.0
Week of 8/30100.0*Chance in playoffs100.0*Average seed
Wilmington 0 Orlando 0 +5.2
+0.2
Charleston 4 Pittsburgh 0 +1.9
-0.1
Harrisburg 1 Rochester 4 -1.3
+0.0
Montréal 1 Charlotte 1 +0.9
+0.0
Wilmington 0 Sacramento 0 +0.5
-0.1
Sacramento 1 OKC 0 In
Dayton 0 Wilmington 4 +0.5
Charleston 2 Harrisburg 1 -0.1
Week of 9/6100.0*Chance in playoffs100.0*Average seed
Rochester 2 Wilmington 0 -0.8
Points
Chance Will Make Playoffs