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
Argentina 1 Nigeria 0 +26.6
+0.7
Argentina 4 Coreia do Sul 1 +7.6
+0.6
Grecia 2 Nigeria 1 -3.8
Coreia do Sul 2 Grecia 0 -0.5
Week of 6/18100.0*Chance in next round100.0*Average seed
Grecia 0 Argentina 2 In
+0.1
Nigeria 2 Coreia do Sul 2 In
Week of 6/25None
Points
Chance Will Make Next Round