How are these numbers calculated?

Big Games

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

Week of 8/2100.0*Chance in playoffs100.0*League100.0*Average seed
Dunedin 6 Botany 5 -14.0
-2.2
-0.3
West Auckland 2 Canterbury 5 -3.7
-1.3
-0.0
Dunedin 5 Botany 4 -2.0
No
-0.2
West Auckland 5 Canterbury 7 -0.6
No
Week of 8/9100.0*Chance in playoffs100.0*League100.0*Average seed
Botany 1 Southern 4 -0.3
Botany 7 Southern 6 (ot)+0.1
Week of 8/16None
Points
Chance Will Make Playoffs