How are these numbers calculated?

Big Games

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

Week of 6/12100.0*Chance in next round100.0*Average seed
Argentina 2 Bosnia 1 +25.4
+0.6
Iran 0 Nigeria 0 +1.8
+0.1
Week of 6/19100.0*Chance in next round100.0*Average seed
Argentina 1 Iran 0 In
+0.8
Nigeria 1 Bosnia 0 -3.1
-0.1
Nigeria 2 Argentina 3 +0.6
Week of 6/26None
Points
Chance Will Make Next Round