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
Jurong 2 Gombak 1 -0.6
Woodlands 1 Balestier 0 +0.1
Sengkang 1 Geylang 2 -0.1
Clementi 0 T. Pagar 4 -0.0
Week of 10/6100.0*Average seed
Home 1 Jurong 0 +0.1
Gombak 2 T. Pagar 2 -0.1
Geylang 2 Woodlands 1 -0.0
SAFFC 2 Balestier 2 -0.0
Week of 10/16100.0*Average seed
Balestier 0 Gombak 1 +0.7
Jurong 1 Tampines 0 -0.2
Points
Chance Will Win Championship