How are these numbers calculated?

Big Games

How we did yesterday and who we should root for today.   Explain

Sunday100.0*Average seed
Järfälla 5 Boo 0 -0.4
Tyresö Hanviken 4 Vallentuna 6 -0.1
TuesdayNone
Thursday100.0*Average seed
Boo 7 Tyresö Hanviken 1 +0.5
Vallentuna 3 Trångsund 3 -0.1
Points
Chance Will Make Playoffs