How are these numbers calculated?

Big Games

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

Week of 6/20100.0*Chance in playoffs100.0*Round of 8100.0*Average seed
Bolivia 1 Peru 3 +33.0
+33.0
+2.5
Ecuador 1 Chile 2 +1.3
+1.3
Colombia 1 Qatar 0 +1.2
+1.2
Argentina 1 Paraguay 1 +0.9
+0.9
Brazil 0 Venezuela 0 +0.4
+0.4
+0.1
Uruguay 2 Japan 2 -0.4
-0.4
Week of 6/24100.0*Chance in playoffs100.0*Round of 8100.0*Average seed
Peru 0 Brazil 5 -1.1
-1.1
-1.8
Bolivia 1 Venezuela 3 -1.1
-1.1
-0.6
Colombia 1 Paraguay 0 In
Yes
-0.1
Ecuador 1 Japan 1 In
Yes
Qatar 0 Argentina 2 -0.2
-0.2
-0.0
Chile 0 Uruguay 1 -0.1
Points
Chance Will Make Playoffs