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
Faroe Islands 0 Latvia 0 +0.2
Gibraltar 0 Estonia 6 -0.2
Cyprus 1 Greece 2 +0.2
Bulgaria 0 France 1 +0.0
Week of 10/8100.0*Average seed
Norway 1 Northern Ireland 0 +4.0
Germany 5 Azerbaijan 1 +0.5
Luxembourg 1 Bulgaria 1 +0.4
Estonia 1 Bosnia 2 +0.2
Moldova 0 Austria 1 -0.2
Czech Republic 5 San Marino 0 -0.2
Denmark 1 Romania 1 -0.1
Israel 0 Spain 1 +0.0
Points
Chance Will Make Playoffs