How are these numbers calculated?

Big Games

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

Week of 6/6100.0*Chance in playoffs100.0*Round of 8100.0*Average seed
Mexico 2 Jamaica 0 +0.1
Uruguay 0 Venezuela 1 +0.1
Week of 6/10100.0*Chance in playoffs100.0*Round of 8100.0*Average seed
Colombia 2 Costa Rica 3 +13.0
+13.0
+3.0
United States 1 Paraguay 0 Out
No
+0.3
Argentina 3 Bolivia 0 +0.3
Ecuador 4 Haiti 0 +0.1
Uruguay 3 Jamaica 0 +0.1
Chile 2 Bolivia 1 +0.0
Chile 4 Panama 2 -0.0
Points
Chance Will Make Playoffs