How are these numbers calculated?

Big Games

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

Week of 6/11100.0*Chance in next round100.0*Average seed
South Africa 0 Uruguay 3 +18.9
+0.5
Uruguay 0 France 0 -1.4
-0.0
South Africa 1 Mexico 1 +1.4
France 0 Mexico 2 +1.2
+0.2
Week of 6/18100.0*Chance in next round100.0*Average seed
Mexico 0 Uruguay 1 In
+0.3
France 1 South Africa 2 -2.1
-0.0
Week of 6/25None
Points
Chance Will Make Next Round