How are these numbers calculated?

Big Games

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

Week of 4/30100.0*Chance wins title100.0*16/17 CL
Grödig 2 Rapid Wien 0 +0.8
+0.8
Austria Wien 0 Salzburg 2 +0.8
+0.8
Week of 5/8None
Week of 5/15None
Points
Chance Will Win Championship