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 -0.7
Switzerland 5 Hungary 2 +0.5
Cyprus 1 Greece 2 +0.1
Gibraltar 0 Estonia 6 -0.1
Andorra 0 Portugal 2 +0.0
Week of 10/8100.0*Average seed
Hungary 1 Faroe Islands 0 -0.9
Points
Chance Will Make Playoffs