How are these numbers calculated?

Big Games

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

Week of 7/18100.0*Average seed
Tampines 8 Balestier 3 -0.7
Home 9 Gombak 3 -0.2
T. Pagar 2 Jurong 1 +0.1
Week of 7/25100.0*Average seed
Balestier 1 Geylang 0 +0.8
Tampines 1 Sembawang 0 -0.2
Jurong 2 Home 1 -0.1
Week of 8/1100.0*Average seed
Sembawang 1 Balestier 4 +0.8
Geylang 2 Jurong 3 -0.5
Sengkang 2 Tampines 3 -0.2
Points
Chance Will Win Championship