How are these numbers calculated?

Big Games

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

Week of 10/5100.0*Chance in playoffs100.0*Qualified100.0*Average seed
United States 4 Panama 0 -38.2
-23.4
-0.5
Costa Rica 1 Honduras 1 -3.5
-0.1
Week of 10/9100.0*Chance in playoffs100.0*Qualified100.0*Average seed
Trinidad and T 2 United States 1 +20.3
+10.4
+0.2
Panama 2 Costa Rica 1 +14.0
+20.0
+0.4
Honduras 3 Mexico 2 -0.6
-25.3
-0.5
Points
Chance Will Make Playoffs