How are these numbers calculated?

Big Games

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

Week of 5/14100.0*Serie B100.0*Average seed
Crotone 1 Udinese 0 +8.7
-0.1
Palermo 1 Genoa 0 +6.2
-0.3
Cagliari 3 Empoli 2 -0.3
+0.2
Week of 5/21100.0*Serie B100.0*Average seed
Genoa 2 Torino 1 -27.6
+0.7
Juventus 3 Crotone 0 -11.9
+0.1
Empoli 0 Atalanta 1 -1.7
+0.1
Week of 5/28100.0*Serie B100.0*Average seed
Palermo 2 Empoli 1 +0.2
Roma 3 Genoa 2 -0.1
Points
Chance Will Win Championship