How are these numbers calculated?

Big Games

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

Week of 9/30100.0*Average seed
Assyriska Turab 2 IS Halmia 3 +0.5
Torslanda IK 4 Hittarps IK 1 +0.1
Vinbergs IF 1 Tvååkers IF 2 +0.1
Week of 10/7100.0*Average seed
IS Halmia 0 Vinbergs IF 1 -0.6
Hittarps IK 0 Eskilsminne IF 1 +0.2
Week of 10/14100.0*Average seed
Torslanda IK 0 IS Halmia 0 -0.4
Höganäs BK 0 Hittarps IK 4 -0.2
Points
Chance Will Win Championship