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 +8.5
+0.4
+0.4
Los Angeles 1 Antigua 2 +3.0
+0.1
Harrisburg 3 Charleston 0 -2.0
+2.0
+0.0
Wilmington 2 Charleston 1 -1.8
+0.7
-0.0
Charlotte 4 Antigua 0 -1.0
-0.0
Charleston 2 Wilmington 2 +0.1
+0.2
+0.0
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 +14.6
+5.6
+1.0
Pittsburgh 0 Charlotte 3 -4.3
-0.2
-0.1
Rochester 0 Charleston 4 -1.4
+7.1
-0.1
Dayton 2 Charlotte 2 +0.9
+0.3
+0.1
Los Angeles 1 Antigua 0 -0.1
Week of 8/19100.0*Chance in playoffs100.0*First-round bye100.0*Average seed
Antigua 2 Richmond 1 No
-1.7
Charlotte 1 Wilmington 2 +0.2
Points
Chance Will Make Playoffs