How are these numbers calculated?

Big Games

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

Week of 10/5100.0*Chance in World Cup100.0*Promoted100.0*Average seed
Argentina 0 Peru 0 +4.1
+2.3
+0.0
Chile 2 Equador 1 Out
No
-0.6
Colombia 1 Paraguai 2 +0.3
-1.3
-0.3
Points
Chance Will Make Next Round