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
Bélgica 2 Argélia 1 +25.4
+0.6
Rússia 1 Coréia do Sul 1 +1.8
+0.1
Week of 6/19100.0*Chance in next round100.0*Average seed
Bélgica 1 Rússia 0 In
+0.5
Coréia do Sul 2 Argélia 4 +0.0
Week of 6/26100.0*Chance in next round100.0*Average seed
Argélia 1 Rússia 1 +0.1
Coréia do Sul 0 Bélgica 1 +0.1
Points
Chance Will Make Next Round