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 -15.3
+0.2
Palermo 1 Genoa 0 -4.9
Cagliari 3 Empoli 2 -2.3
Week of 5/21100.0*Serie B100.0*Average seed
Genoa 2 Torino 1 +17.1
-0.3
Juventus 3 Crotone 0 +16.4
-0.2
Empoli 0 Atalanta 1 -4.4
+0.1
Week of 5/28100.0*Serie B100.0*Average seed
Crotone 3 Lazio 1 -45.2
+0.5
Palermo 2 Empoli 1 -26.8
+0.3
Points
Chance Will Win Championship