How are these numbers calculated?

Big Games

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

Week of 5/1100.0*Serie B100.0*Average seed
Palermo 2 Sampdoria 0 +19.4
-0.2
Juventus 2 Carpi 0 +4.2
-0.1
Udinese 1 Torino 5 -0.4
+0.1
Milan 3 Frosinone 3 -0.1
Week of 5/8100.0*Serie B100.0*Average seed
Carpi 1 Lazio 3 +22.5
-0.4
Fiorentina 0 Palermo 0 +9.9
-0.1
Atalanta 1 Udinese 1 +1.3
-0.1
Frosinone 0 Sassuolo 1 -0.3
Week of 5/15100.0*Serie B100.0*Average seed
Udinese 1 Carpi 2 -33.8
+0.3
Palermo 3 Hellas Verona 2 Yes
-0.2
Points
Chance Will Win Championship