How are these numbers calculated?

Big Games

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

Week of 9/19100.0*Average seed
Sembawang 0 Tampines 7 -0.5
Geylang 5 Balestier 1 -0.1
Gombak 1 Woodlands 4 -0.1
Week of 9/26100.0*Average seed
Sembawang 0 Woodlands 3 -0.4
Week of 10/3None
Points
Chance Will Win Championship