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 -18.9
+0.3
Palermo 1 Genoa 0 -6.7
+0.1
Cagliari 3 Empoli 2 -6.7
+0.1
Week of 5/21100.0*Serie B100.0*Average seed
Juventus 3 Crotone 0 +26.8
-0.4
Genoa 2 Torino 1 +12.8
-0.3
Empoli 0 Atalanta 1 -12.1
+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
+0.3
Points
Chance Will Win Championship