How are these numbers calculated?

Big Games

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

Week of 10/2100.0*Average seed
Sinchi 0 Tampines 2 +0.2
Week of 10/9100.0*Average seed
Sembawang 2 Woodlands 2 +0.4
Tampines 0 Sembawang 2 -0.3
Woodlands 2 Sinchi 3 +0.2
Week of 10/16None
Points
Chance Will Win Championship