How are these numbers calculated?

Big Games

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

Week of 7/30100.0*Chance in playoffs100.0*Average seed
Rochester 0 Charlotte 3 -18.5
-0.2
Orlando 1 Charleston 0 -10.6
-0.2
Charleston 0 Rochester 1 -9.7
-0.2
Pittsburgh 2 Richmond 0 +0.4
+0.1
Los Angeles 2 Barracuda FC 1 +0.2
Harrisburg 1 Wilmington 2 -0.1
-0.1
Week of 8/6100.0*Chance in playoffs100.0*Average seed
Charleston 4 Charlotte 3 In
+0.7
Orlando 2 Charleston 1 -12.5
-0.2
Charlotte 0 Harrisburg 1 +10.3
+0.1
Richmond 3 Dayton 0 -0.8
-0.0
Pittsburgh 2 Charlotte 2 +0.6
+0.0
Week of 8/13None
Points
Chance Will Make Playoffs