How are these numbers calculated?

Big Games

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

Week of 10/2100.0*Chance in playoffs100.0*Qualified100.0*Average seed
Chile 2 Ecuador 1 -5.5
-3.6
-0.1
Colombia 1 Paraguay 2 -2.5
-3.0
Argentina 0 Peru 0 -0.8
+2.4
+0.0
Venezuela 0 Uruguay 0 -0.4
-0.2
-0.0
Week of 10/10100.0*Chance in playoffs100.0*Qualified100.0*Average seed
Ecuador 1 Argentina 3 In
Yes
+1.2
Brazil 3 Chile 0 +12.4
+12.8
+0.3
Paraguay 0 Venezuela 1 +9.9
+10.9
+0.3
Peru 1 Colombia 1 -1.4
+1.9
+0.2
Uruguay 4 Bolivia 2 -0.1
Points
Chance Will Make Playoffs