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
T. Pagar 2 Jurong 1 -0.2
Home 9 Gombak 3 -0.1
Tampines 8 Balestier 3 +0.1
Week of 7/25100.0*Average seed
Jurong 2 Home 1 +1.1
Balestier 1 Geylang 0 -0.3
Tampines 1 Sembawang 0 -0.2
Week of 8/1100.0*Average seed
Geylang 2 Jurong 3 +0.9
Sembawang 1 Balestier 4 -0.3
Sengkang 2 Tampines 3 -0.3
Points
Chance Will Win Championship