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*Demotion100.0*Average seed
Liechtenstein 2 Armenia 2 No
+0.2
San Marino 0 Belarus 2 No
+0.1
Malta 1 Faroe Islands 1 +1.7
+0.0
Andorra 0 Latvia 0 +1.5
-0.1
Malta 0 Kosovo 5 -1.4
+0.2
Andorra 1 Georgia 1 +0.3
+0.1
Macedonia 4 Gibraltar 0 +0.6
Azerbaijan 2 Faroe Islands 0 +0.1
Points
Chance Will Make Playoffs