How are these numbers calculated?

Big Games

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

Week of 9/29100.0*Average seed
Sengkang 1 Geylang 2 +0.2
Jurong 2 Gombak 1 +0.1
Woodlands 1 Balestier 0 +0.1
Clementi 0 T. Pagar 4 -0.0
Week of 10/6100.0*Average seed
Geylang 2 Woodlands 1 +0.1
Gombak 2 T. Pagar 2 -0.1
Week of 10/16None
Points
Chance Will Win Championship