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 -0.2
-0.2
If winner is:HomeDrawAway
Western United vs Amicale-23.8-4.5+25.9
-23.8-4.5+25.9
-2.3-0.2+2.4
Ba vs Gaïtcha-2.9-0.1+2.9
-2.9-0.1+2.9
-0.1+0.1+0.0
Hekari United vs Team Wellington-0.7+1.5*+0.1
-0.7+1.5*+0.1
Tafea vs Team Wellington-0.7+1.5*+0.0
-0.7+1.5*+0.0
Auckland City vs Western United+0.1-1.2+0.4
+0.1-1.2+0.4
+0.0-0.1+0.0
Tefana vs Tafea-0.4+0.7+0.1
-0.4+0.7+0.1
Tafea vs Hekari United-0.2+0.9-0.2
-0.2+0.9-0.2
Tefana vs Hekari United-0.4+0.7+0.1
-0.4+0.7+0.1
If winner is:HomeDrawAway
Week of 4/18100.0*Chance in playoffs100.0*Playoffs100.0*Average seed
Amicale vs Auckland City+25.8-4.2-23.9
+25.8-4.2-23.9
+2.4-0.2-2.3
Ba vs Pirae+2.1+3.1-3.6
+2.1+3.1-3.6

* 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 Amicale finish out the regular season.   Explain

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-D-LplayoffsPlayoffs123456789101112Count
62-0-098.9%98.9%2750165101,005,586
41-1-050.450.40113940810933,405
31-0-12.32.30214312918512,006,717
20-2-0OutNo011248345216,678
10-1-1OutNo03374613934,732
00-0-2OutNo733611,003,218
Total:24.8%24.8%4848111111131045106,100,336
Points
Chance Will Make Playoffs