How are these numbers calculated?

Big Games

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

Week of 8/3100.0*Average seed
Balestier 1 Woodlands 0 +0.2
Clementi 4 Gombak 3 -0.1
SAFFC 6 Sembawang 2 -0.1
Week of 8/10100.0*Average seed
Home 1 Sembawang 0 -0.1
Clementi 2 Woodlands 2 +0.0
Week of 8/18100.0*Average seed
Woodlands 0 Home 1 +0.1
Points
Chance Will Win Championship