How are these numbers calculated?

Big Games

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

Week of 10/21100.0*Chance wins title100.0*Promoted100.0*Average seed
Oskarshamns AIK 2 Landskrona BoIS 1 +0.3
+0.2
Week of 10/28100.0*Chance wins title100.0*Promoted100.0*Average seed
IK Oddevold 3 Landskrona BoIS 2 +2.6
+1.3
Mjällby 2 Oskarshamns AIK 1 +2.5
+1.3
Utsikten 3 Kristianstad FC 3 +0.1
Week of 11/4100.0*Chance wins title100.0*Promoted100.0*Average seed
Ljungskile SK 2 Mjällby 2 No
-3.3
-0.1
Points
Chance Will Win Championship