How are these numbers calculated?

Big Games

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

Week of 10/7100.0*Average seed
Bosnia 3 Belgium 4 +1.0
Switzerland 5 Hungary 2 -0.1
Andorra 0 Portugal 2 -0.0
Week of 10/8100.0*Average seed
Belgium 4 Cyprus 0 +0.7
Israel 0 Spain 1 -0.2
Portugal 2 Switzerland 0 +0.1
Germany 5 Azerbaijan 1 -0.1
Points
Chance Will Make Playoffs