How are these numbers calculated?

Big Games

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

Week of 10/17100.0*Average seed
Harimau Muda 0 T. Pagar 5 +0.2
Woodlands 1 Y. Lions 2 -0.1
Week of 10/24100.0*Average seed
Hougang 4 T. Pagar 2 -0.3
Y. Lions 1 Geylang 1 +0.1
Week of 10/31None
Chance Will Make Playoffs