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
Gibraltar 0 Estonia 6 -0.3
Cyprus 1 Greece 2 +0.1
Faroe Islands 0 Latvia 0 +0.0
Week of 10/8100.0*Average seed
Norway 1 Northern Ireland 0 -0.8
Germany 5 Azerbaijan 1 -0.8
Finland 2 Turkey 2 +0.3
Macedonia 4 Liechtenstein 0 -0.3
Belgium 4 Cyprus 0 +0.1
Points
Chance Will Make Playoffs