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
Argentina 0 Peru 0 -9.4
-3.3
-0.2
Colombia 1 Paraguay 2 -8.4
-6.8
+0.0
Chile 2 Ecuador 1 -0.1
+0.3
+0.0
Venezuela 0 Uruguay 0 +0.0
Week of 10/10100.0*Chance in playoffs100.0*Qualified100.0*Average seed
Ecuador 1 Argentina 3 In
Yes
+1.2
Paraguay 0 Venezuela 1 +27.9
+19.9
+0.5
Brazil 3 Chile 0 +3.4
+4.9
+0.1
Peru 1 Colombia 1 -1.2
+2.8
+0.1
Uruguay 4 Bolivia 2 -0.0
Points
Chance Will Make Playoffs