How are these numbers calculated?

Big Games

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

Week of 4/11100.0*Chance in playoffs100.0*Playoffs100.0*Average seed
Pirae 4 Auckland City 11 -0.5
-0.5
+0.0
If winner is:HomeDrawAway
Auckland City vs Western United-27.2-0.5+27.4
-27.2-0.5+27.4
-1.6+0.1+1.6
Western United vs Amicale+26.7-2.2-25.7
+26.7-2.2-25.7
+1.4+0.1-1.5
Ba vs Gaïtcha-3.2+0.3+3.1
-3.2+0.3+3.1
-0.1+0.1+0.1
Hekari United vs Team Wellington-1.0+2.3*-0.0
-1.0+2.3*-0.0
-0.1+0.1+0.0
Tafea vs Team Wellington-1.0+2.2*-0.0
-1.0+2.2*-0.0
-0.1+0.1+0.0
Tefana vs Hekari United-0.9+1.6+0.1
-0.9+1.6+0.1
-0.1+0.1+0.0
Tefana vs Tafea-0.8+1.7*+0.1
-0.8+1.7*+0.1
-0.1+0.1+0.0
Tafea vs Hekari United-0.4+1.9-0.4
-0.4+1.9-0.4
-0.0+0.1-0.0
If winner is:HomeDrawAway
Week of 4/18100.0*Chance in playoffs100.0*Playoffs100.0*Average seed
Ba vs Pirae+2.1+3.8-3.9
+2.1+3.8-3.9
+0.0+0.1-0.1
Amicale vs Auckland City-0.9+0.8+0.5
-0.9+0.8+0.5

* A starred number could be exactly 0 or just really small. The simulation did not run long enough to know.

What If

Chances based on how well the Western United finish out the regular season.   Explain

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-D-LplayoffsPlayoffs123456789101112Count
92-0-0InYes88121,005,820
71-1-0InYes554230932,404
61-0-192.8%92.8%8273523702,006,912
50-2-084.984.91123537141217,584
40-1-129.929.905254223500933,357
30-0-20.90.9017233426711,004,259
Total:70.1%70.1%2518141310764106,100,336
Points
Chance Will Make Playoffs