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
+0.3
El Salvador 2 Curaçao 0 -2.5
-2.5
United States 3 Martinique 2 -1.8
-1.8
-0.1
Panama 2 Nicaragua 1 -1.8
-1.8
+0.0
Costa Rica 1 Canada 1 -1.2
-1.2
-0.1
Mexico 0 Jamaica 0 -0.5
-0.5
Week of 7/16100.0*Chance in playoffs100.0*Round of 8100.0*Average seed
Canada 0 Honduras 0 Out
No
-0.4
Jamaica 1 El Salvador 1 -3.4
-3.4
-0.1
Panama 3 Martinique 0 +1.6
+1.6
+0.1
Nicaragua 0 United States 3 -0.1
-0.1
+0.1
Costa Rica 3 French Guyana 0 +0.2
Curaçao 0 Mexico 2 +0.0
Points
Chance Will Make Playoffs