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*Average seed
Tuisku 1 LaVe 1 -0.3
TaPa 3 UrPS 0 +0.2
FC Vapsi 1 FC Melody 8 -0.2
VesVi 10 FC Teivo 4 -0.1
Week of 9/22100.0*Average seed
PoNU Bk 2 TaPa 1 -0.2
FC Melody 6 PELIKASSIT 2 -0.2
UrPS 2 Härmä/2 0 -0.1
LaVe 2 VesVi 2 +0.0
Week of 9/29100.0*Average seed
FC Vapsi 1 LaVe 1 -0.7
Tuisku 3 UrPS 8 -0.6
VesVi 0 ACE 3 +0.4
Points
Chance Will Win Championship