How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 11/15100.0*Average seed
Macedonia 4 Gibraltar 0 -0.5
Andorra 0 Latvia 0 +0.4
Malta 1 Faroe Islands 1 +0.4
Liechtenstein 2 Armenia 2 +0.1
Andorra 1 Georgia 1 -0.1
Malta 0 Kosovo 5 +0.1
Azerbaijan 2 Faroe Islands 0 +0.1
Moldova 1 Luxembourg 1 -0.0
Points
Chance Will Make Playoffs