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 -0.2
Cyprus 1 Greece 2 +0.0
Week of 10/8100.0*Average seed
Macedonia 4 Liechtenstein 0 +0.8
Finland 2 Turkey 2 +0.1
Points
Chance Will Make Playoffs