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*Chance in playoffs100.0*Promotion100.0*Average seed
Montenegro 0 Romania 1 +39.1
+39.1
+2.6
Serbia 4 Lithuania 1 Out
No
-0.5
Romania 3 Lithuania 0 +17.4
+17.4
+1.9
Serbia 2 Montenegro 1 -8.5
-8.5
-0.1
Greece 0 Estonia 1 +0.2
Cyprus 0 Norway 2 -0.2
Hungary 2 Finland 0 -0.1
Bulgaria 1 Slovenia 1 +0.0
Points
Chance Will Make Playoffs