How are these numbers calculated?

Big Games

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

Week of 11/17100.0*Average seed
Hougang 2 Tampines 4 +0.0
Week of 11/18100.0*Average seed
Balestier 1 Hougang 1 +0.3
Liaoning 0 Woodlands 2 +0.3
Gombak 1 Balestier 0 -0.2
Points
Chance Will Win Championship