How are these numbers calculated?

Big Games

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

Week of 8/3100.0*Chance in playoffs100.0*First-round bye100.0*Average seed
Wilmington 2 Charleston 1 +15.5
+1.4
+0.8
Charlotte 4 Antigua 0 -6.7
-0.1
Richmond 2 Antigua 0 -4.0
-0.1
-0.2
Harrisburg 3 Charleston 0 -3.6
+0.7
-0.0
Charleston 2 Wilmington 2 -2.3
-1.4
-0.2
Los Angeles 1 Antigua 2 +1.6
+0.1
Rochester 0 Orlando 1 +1.3
Week of 8/10100.0*Chance in playoffs100.0*First-round bye100.0*Average seed
Pittsburgh 0 Charlotte 3 -4.4
-0.1
Los Angeles 1 Antigua 0 -2.9
Rochester 0 Charleston 4 -2.7
+1.4
-0.2
Richmond 2 Harrisburg 1 -2.6
+0.2
-0.0
Dayton 2 Charlotte 2 +1.8
+0.1
Week of 8/19100.0*Chance in playoffs100.0*First-round bye100.0*Average seed
Charlotte 1 Wilmington 2 In
+0.9
Los Angeles 0 Harrisburg 1 -29.2
-0.3
Points
Chance Will Make Playoffs