How are these numbers calculated?

Big Games

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

Week of 6/16100.0*Chance in next round100.0*Average seed
Argentina 1 Iceland 1 -0.9
-0.0
Week of 6/21100.0*Chance in next round100.0*Average seed
Nigeria 1 Argentina 2 +46.0
+0.9
Argentina 0 Croatia 3 -27.7
-0.7
Iceland 1 Croatia 2 +9.3
+0.3
Week of 6/28None
Points
Chance Will Make Next Round