How are these numbers calculated?

Big Games

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

Week of 7/13100.0*Chance in playoffs100.0*Round of 8100.0*Average seed
El Salvador 2 Curaçao 0 -23.8
-23.8
-1.5
Honduras 0 French Guyana 0 +6.2
+6.2
United States 3 Martinique 2 -2.0
-2.0
-0.1
Panama 2 Nicaragua 1 -1.9
-1.9
+0.0
Mexico 0 Jamaica 0 -0.9
-0.9
-0.1
Costa Rica 1 Canada 1 -0.5
-0.5
Week of 7/16100.0*Chance in playoffs100.0*Round of 8100.0*Average seed
Curaçao 0 Mexico 2 Out
No
-0.3
Jamaica 1 El Salvador 1 Out
No
Canada 0 Honduras 0 +0.2
+0.2
Panama 3 Martinique 0 +0.1
+0.1
Costa Rica 3 French Guyana 0 +0.1
+0.1
+0.0
Nicaragua 0 United States 3 +0.2
Points
Chance Will Make Playoffs