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
Andorra 0 Latvia 0 No
-0.9
San Marino 0 Belarus 2 No
+0.1
Malta 1 Faroe Islands 1 +3.2
+0.0
Malta 0 Kosovo 5 -1.5
+0.1
Andorra 1 Georgia 1 -1.1
-0.5
Liechtenstein 2 Armenia 2 +0.6
-0.1
Georgia 2 Kazakhstan 1 +0.5
Macedonia 4 Gibraltar 0 +0.1
Points
Chance Will Make Playoffs