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 -0.4
-0.4
-0.0
If winner is:HomeDrawAway
Tafea vs Hekari United+27.5-7.2-24.2
+27.5-7.2-24.2
+1.7-0.1-1.7
Tefana vs Tafea-16.3+1.2+34.2
-16.3+1.2+34.2
-1.1+0.3+2.1
Tafea vs Team Wellington+16.4-12.5-26.2
+16.4-12.5-26.2
+1.2-0.5-2.3
Ba vs Gaïtcha-1.8+3.2+6.6
-1.8+3.2+6.6
-0.1+0.1+0.1
Western United vs Amicale-1.6+2.3+1.9
-1.6+2.3+1.9
Hekari United vs Team Wellington-1.5+1.9+1.8
-1.5+1.9+1.8
Tefana vs Hekari United*+0.0+0.9-0.7
*+0.0+0.9-0.7
Auckland City vs Western United-0.8+0.7+0.3
-0.8+0.7+0.3
If winner is:HomeDrawAway
Week of 4/18100.0*Chance in playoffs100.0*Playoffs100.0*Average seed
Ba vs Pirae+0.0+5.8-3.2
+0.0+5.8-3.2
Amicale vs Auckland City+3.0+2.9-2.5
+3.0+2.9-2.5
-0.0+0.1-0.0

* 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 Tafea finish out the regular season.   Explain

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-D-LplayoffsPlayoffs123456789101112Count
93-0-0InYes72281,022,679
72-1-0InYes29551511,570,586
62-0-179.9%79.9%21431331823,694,741
51-2-065.665.6021945331765,336
41-1-116.416.4021441366003,438,127
31-0-20.40.4005273823603,691,062
0-3-00.20.20063942111118,788
20-2-1OutNo033446161765,489
10-1-2OutNo08384951,570,721
00-0-3OutNo1052381,020,287
Total:37.5%37.5%71091214141210613217,657,816
Points
Chance Will Make Playoffs