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
Andorra 0 Portugal 2 +0.1
Belarus 1 Netherlands 3 +0.1
Sweden 8 Luxembourg 0 +0.0
Week of 10/8100.0*Average seed
Latvia 4 Andorra 0 +2.2
Kazakhstan 1 Armenia 1 +0.2
Lithuania 0 England 1 +0.1
Luxembourg 1 Bulgaria 1 +0.1
Serbia 1 Georgia 0 +0.0
France 2 Belarus 1 +0.0
Points
Chance Will Make Playoffs