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
Honduras 0 French Guyana 0 -6.5
-6.5
-0.4
Costa Rica 1 Canada 1 -4.0
-4.0
-0.1
Mexico 0 Jamaica 0 -1.5
-1.5
United States 3 Martinique 2 -1.5
-1.5
-0.1
Panama 2 Nicaragua 1 -0.8
-0.8
El Salvador 2 Curaçao 0 -0.7
-0.7
Week of 7/16100.0*Chance in playoffs100.0*Round of 8100.0*Average seed
Costa Rica 3 French Guyana 0 Out
No
-2.1
Canada 0 Honduras 0 +1.9
+1.9
-0.3
Jamaica 1 El Salvador 1 -1.0
-1.0
Panama 3 Martinique 0 +0.8
+0.8
+0.0
Nicaragua 0 United States 3 -0.3
-0.3
+0.2
Curaçao 0 Mexico 2 -0.2
-0.2
+0.2
Points
Chance Will Make Playoffs