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 -10.3
-0.1
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
-0.2
ACE 4 Tuisku 1 -0.2
Week of 9/29100.0*Chance wins title100.0*Average seed
TaPa 2 PELIKASSIT 7 Yes
+1.2
VesVi 0 ACE 3 -0.3
Points
Chance Will Win Championship