How are these numbers calculated?

Big Games

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

Week of 5/5100.0*Chance wins title100.0*Average seed
Nancy 0 Monaco 3 +2.4
+0.0
PSG 5 Bastia 0 -1.6
Week of 5/13100.0*Chance wins title100.0*Average seed
Monaco 4 Lille 0 +1.7
+0.0
Saint-Étienne 0 PSG 5 -1.4
Week of 5/17100.0*Chance wins title100.0*Average seed
Monaco 2 Saint-Étienne 0 Yes
Points
Chance Will Win Championship