How are these numbers calculated?

Big Games

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

Week of 6/14100.0*Chance in next round100.0*Average seed
Brazil 1 Switzerland 1 -0.9
-0.0
Costa Rica 0 Serbia 1 -0.3
Week of 6/21100.0*Chance in next round100.0*Average seed
Brazil 2 Costa Rica 0 +21.7
+0.5
Serbia 1 Switzerland 2 -13.3
-0.2
Serbia 0 Brazil 2 In
+0.3
Switzerland 2 Costa Rica 2 +0.6
+0.2
Week of 6/28100.0*Chance in next round100.0*Average seed
Brazil 2 Mexico 0 +0.0
Points
Chance Will Make Next Round