How are these numbers calculated?

Big Games

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

Week of 10/11100.0*Average seed
Wales 1 Macedonia 0 -5.9
Serbia 5 Macedonia 1 -2.1
Scotland 2 Croatia 0 -1.3
Montenegro 2 Moldova 5 -0.1
Cyprus 0 Albania 0 +0.1
Armenia 2 Bulgaria 1 -0.1
Lithuania 2 Latvia 0 -0.0
Latvia 2 Slovakia 2 +0.0
Malta 1 Czech Republic 4 -0.0
Estonia 0 Turkey 2 +0.0
Points
Chance Will Make Playoffs