How are these numbers calculated?

Big Games

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

Week of 1/29100.0*Chance in playoffs100.0*Relegated100.0*Average seed
Wellington 1 Adelaide 0 Out
+16.2
-0.3
Brisbane 1 Sydney 0 -0.1
+3.5
-0.1
North Queenslan 2 Newcastle 1 +8.0
-0.1
Perth 3 Central Coast 1 -1.6
Week of 2/5100.0*Chance in playoffs100.0*Relegated100.0*Average seed
Adelaide 2 Brisbane 0 -16.1
+0.2
Central Coast 3 Newcastle 0 +12.0
-0.2
Melbourne 2 North Queenslan 0 -1.2
Week of 2/12100.0*Chance in playoffs100.0*Relegated100.0*Average seed
Newcastle 1 Adelaide 2 -34.8
+0.3
Points
Chance Will Make Playoffs