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
Cagliari 3 Empoli 2 +8.3
-0.3
Palermo 1 Genoa 0 -2.3
+0.2
Week of 5/21100.0*Serie B100.0*Average seed
Empoli 0 Atalanta 1 +19.8
-0.4
Genoa 2 Torino 1 +11.6
-0.3
Juventus 3 Crotone 0 -11.2
+0.2
Week of 5/28100.0*Serie B100.0*Average seed
Crotone 3 Lazio 1 +32.7
-0.3
Palermo 2 Empoli 1 +32.7
-0.4
Roma 3 Genoa 2 +0.2
Points
Chance Will Win Championship