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
Brazil 3 Croatia 1 +25.5
+0.6
Brazil 0 Mexico 0 +5.2
+0.2
Cameroon 0 Croatia 4 +2.8
Mexico 1 Cameroon 0 -0.2
-0.0
Week of 6/19100.0*Chance in next round100.0*Average seed
Cameroon 1 Brazil 4 In
+0.2
Croatia 1 Mexico 3 In
-0.1
Week of 6/26None
Points
Chance Will Make Next Round