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
Richmond 2 Antigua 0 +17.7
+0.8
+0.7
Charlotte 4 Antigua 0 -3.6
-0.1
Wilmington 2 Charleston 1 -2.9
+0.7
-0.1
Harrisburg 3 Charleston 0 -2.5
+1.7
-0.0
Los Angeles 1 Antigua 2 +2.4
+0.1
Charleston 2 Wilmington 2 +1.0
+0.1
+0.1
Rochester 0 Orlando 1 +0.5
Week of 8/10100.0*Chance in playoffs100.0*First-round bye100.0*Average seed
Richmond 2 Harrisburg 1 +23.5
+7.0
+1.1
Pittsburgh 0 Charlotte 3 -7.2
-0.4
-0.2
Rochester 0 Charleston 4 -2.2
+3.1
-0.1
Dayton 2 Charlotte 2 +0.4
+0.3
+0.0
Los Angeles 1 Antigua 0 -0.4
Week of 8/19100.0*Chance in playoffs100.0*First-round bye100.0*Average seed
Antigua 2 Richmond 1 No
-1.1
Charlotte 1 Wilmington 2 +0.2
Points
Chance Will Make Playoffs