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
Sweden 8 Luxembourg 0 +0.0
Week of 10/8100.0*Average seed
Finland 2 Turkey 2 -0.8
Kazakhstan 1 Armenia 1 +0.1
Macedonia 4 Liechtenstein 0 -0.1
Points
Chance Will Make Playoffs