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
Panama 2 Nicaragua 1 +26.1
+26.1
+1.4
Honduras 0 French Guyana 0 +4.6
+4.6
+0.1
United States 3 Martinique 2 -2.6
-2.6
-0.3
El Salvador 2 Curaçao 0 -1.9
-1.9
-0.0
Mexico 0 Jamaica 0 -0.3
-0.3
Costa Rica 1 Canada 1 -0.3
-0.3
Week of 7/16100.0*Chance in playoffs100.0*Round of 8100.0*Average seed
Jamaica 1 El Salvador 1 -3.7
-3.7
-0.1
Panama 3 Martinique 0 In
Yes
+2.1
Canada 0 Honduras 0 +1.3
+1.3
+0.1
Costa Rica 3 French Guyana 0 +0.4
+0.4
-0.1
Nicaragua 0 United States 3 -0.1
-0.1
-0.3
Curaçao 0 Mexico 2 -0.0
Points
Chance Will Make Playoffs