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
Sembawang 1 Home 2 -0.2
SAFFC 4 Tampines 0 +0.1
Woodlands 1 Balestier 0 -0.1
Week of 10/6100.0*Average seed
Sengkang 1 Sembawang 3 +0.5
Geylang 2 Woodlands 1 +0.1
Tampines 1 Clementi 1 +0.1
Week of 10/16100.0*Average seed
Jurong 1 Tampines 0 +0.2
Sembawang 3 SAFFC 4 -0.1
Points
Chance Will Win Championship