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
Coreia do Sul 2 Grecia 0 +26.6
+0.7
Argentina 4 Coreia do Sul 1 -9.1
-0.6
Grecia 2 Nigeria 1 +2.1
Argentina 1 Nigeria 0 -0.5
Week of 6/18100.0*Chance in next round100.0*Average seed
Nigeria 2 Coreia do Sul 2 +8.8
+0.2
Grecia 0 Argentina 2 +6.3
+0.1
Week of 6/25None
Points
Chance Will Make Next Round