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
Suva 2 Amicale 3 +29.4
+29.4
+2.0
Western United 0 Amicale 1 +24.9
+24.9
+2.1
Pirae 3 Lupe ole Soaga 3 +1.9
+1.9
+0.1
Auckland City 3 Western United 0 -1.7
-1.7
Ba 3 Lupe ole Soaga 1 -1.7
-1.7
-0.1
Hekari United 0 Team Wellington 2 -1.1
-1.1
-0.0
Team Wellington 2 Tefana 1 -0.9
-0.9
-0.0
Tafea 2 Hekari United 3 -0.9
-0.9
-0.0
Ba 3 Gaïtcha 0 -0.4
-0.4
-0.0
Suva 0 Auckland City 3 -0.4
-0.4
Gaïtcha 5 Pirae 2 -0.2
-0.2
+0.0
If winner is:HomeDrawAway
Tefana vs Hekari United+2.8+11.6-8.1
+2.8+11.6-8.1
+0.1+0.2-0.2
Tefana vs Tafea-2.6+6.2-0.3
-2.6+6.2-0.3
-0.0+0.1-0.0
Tafea vs Team Wellington+0.9-0.6-0.6
+0.9-0.6-0.6
+0.2+0.0-0.2
If winner is:HomeDrawAway
Week of 4/18100.0*Chance in playoffs100.0*Playoffs100.0*Average seed
Amicale vs Auckland CityInIn-39.5
YesYes-39.5
+1.7-0.0-1.7
Gaïtcha vs Lupe ole Soaga-10.0+6.8+6.8
-10.0+6.8+6.8
-0.2+0.2+0.2
Ba vs Pirae-2.1-2.2+3.1
-2.1-2.2+3.1
-0.3-0.0+0.3

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
91-0-0InYes553682,212,790
70-1-0InYes1648351,030,748
60-0-133.6%33.6%0528442112,213,606
Total:73.0%73.0%2218151818815,457,144
Points
Chance Will Make Playoffs