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
Switzerland 5 Hungary 2 -0.9
Faroe Islands 0 Latvia 0 +0.7
Belarus 1 Netherlands 3 -0.0
Week of 10/8100.0*Average seed
Hungary 1 Faroe Islands 0 +1.3
Albania 0 Italy 1 +0.3
Czech Republic 5 San Marino 0 -0.1
Points
Chance Will Make Playoffs