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
Belgium 2 Algeria 1 +25.4
+0.6
Russia 1 South Korea 1 +1.0
Week of 6/19100.0*Chance in next round100.0*Average seed
Belgium 1 Russia 0 In
+0.7
South Korea 2 Algeria 4 +0.9
-0.1
Week of 6/26100.0*Chance in next round100.0*Average seed
Algeria 1 Russia 1 +0.2
South Korea 0 Belgium 1 +0.2
Points
Chance Will Make Next Round