How are these numbers calculated?

Big Games

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

Week of 6/8100.0*Chance in playoffs100.0*Consolation100.0*Average seed
Pakuranga 1 6 Howick Red 0 +3.1
-3.1
+0.6
Sancta Maria 6 Howick Black 0 +1.0
-1.0
-0.0
Elim 1 5 Pakuranga 2 1 +0.8
-0.8
Week of 6/15100.0*Chance in playoffs100.0*Consolation100.0*Average seed
Pakuranga 2 5 Howick Red 1 -13.0
+13.0
-0.1
Pakuranga 1 5 Howick Black 1 +11.4
-11.4
+0.3
Sancta Maria 0 Macleans Red 6 +0.1
-0.1
+0.0
Week of 6/22100.0*Chance in playoffs100.0*Consolation100.0*Average seed
Pakuranga 1 6 Macleans Red 0 +28.9
-28.9
+0.3
Pakuranga 2 2 Howick Black 4 +26.5
-26.5
+0.3
Points
Chance Will Make Playoffs