How are these numbers calculated?

Big Games

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

Week of 10/23100.0*Chance in playoffs100.0*Average seed
Hougang 4 Harimau Muda 1 -7.9
-0.7
Albirex 3 Woodlands 1 +1.1
Warriors 3 DPMM 2 +0.5
Balestier 0 Home 1 +0.3
Geylang 1 Y. Lions 0 -0.1
-0.1
Harimau Muda 0 Y. Lions 3 -1.2
Week of 10/30100.0*Chance in playoffs100.0*Average seed
Warriors 1 Harimau Muda 1 -0.3
Harimau Muda 2 DPMM 2 -0.2
Y. Lions 2 Hougang 0 +0.2
Week of 11/6None
Points
Chance Will Make Playoffs