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 +6.7
-0.1
Cagliari 3 Empoli 2 +2.6
-0.2
Palermo 1 Genoa 0 -1.3
+0.2
Week of 5/21100.0*Serie B100.0*Average seed
Genoa 2 Torino 1 +10.5
-0.4
Empoli 0 Atalanta 1 +6.1
-0.2
Juventus 3 Crotone 0 -4.5
+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
-0.5
Roma 3 Genoa 2 +0.1
Points
Chance Will Win Championship