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
Argentina 1 Paraguay 1 -17.4
-17.4
-1.0
Colombia 1 Qatar 0 +1.3
+1.3
+0.1
Uruguay 2 Japan 2 -1.2
-1.2
Ecuador 1 Chile 2 +1.0
+1.0
Bolivia 1 Peru 3 -0.8
-0.8
-0.0
Brazil 0 Venezuela 0 -0.6
-0.6
Week of 6/24100.0*Chance in playoffs100.0*Round of 8100.0*Average seed
Ecuador 1 Japan 1 +41.4
+41.4
+0.4
Colombia 1 Paraguay 0 -18.8
-18.8
-0.6
Qatar 0 Argentina 2 -5.1
-5.1
-0.2
Bolivia 1 Venezuela 3 -2.1
-2.1
-0.0
Points
Chance Will Make Playoffs