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
Ba vs Gaïtcha+10.6-19.3-37.0
+10.6-19.3-37.0
+0.7-0.9-3.3
Hekari United vs Team Wellington-1.6+2.6+1.6
-1.6+2.6+1.6
-0.0+0.1+0.0
Tafea vs Team Wellington-1.6+2.6+1.6
-1.6+2.6+1.6
-0.0+0.1+0.0
Western United vs Amicale-1.3+1.6+1.9
-1.3+1.6+1.9
Tafea vs Hekari United-0.6+2.5-0.6
-0.6+2.5-0.6
-0.0+0.1-0.0
Tefana vs Hekari United+0.4+0.5-1.1
+0.4+0.5-1.1
Tefana vs Tafea+0.4+0.5-1.1
+0.4+0.5-1.1
Auckland City vs Western United-0.5-0.4+0.6
-0.5-0.4+0.6
-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+36.1-19.7-38.3
+36.1-19.7-38.3
+1.7-0.5-2.0
Amicale vs Auckland City+2.8+2.2-2.2
+2.8+2.2-2.2

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-D-LplayoffsPlayoffs123456789101112Count
62-0-094.1%94.1%2194825605,838,655
41-1-032.132.106264222403,912,985
31-0-10.60.6016344015205,147,311
20-2-0OutNo0742429627,718
10-1-1OutNo121412891,493,510
00-0-2OutNo53065637,637
Total:38.4%38.4%16171413151610311217,657,816
Points
Chance Will Make Playoffs