How are these numbers calculated?

Big Games

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

Week of 9/15100.0*Chance wins title100.0*Average seed
TaPa 3 UrPS 0 +11.6
+0.2
Week of 9/22100.0*Chance wins title100.0*Average seed
PoNU Bk 2 TaPa 1 -17.0
-0.2
FC Melody 6 PELIKASSIT 2 +14.2
+0.1
ACE 4 Tuisku 1 -0.1
Week of 9/29100.0*Chance wins title100.0*Average seed
TaPa 2 PELIKASSIT 7 No
-1.2
VesVi 0 ACE 3 -0.2
Points
Chance Will Win Championship