How are these numbers calculated?

Big Games

How we did yesterday and who we should root for today.   Explain

Friday100.0*Chance in playoffs100.0*Average seed
El Paso 3 Grand Prairie 17 +3.9
+0.3
Laredo 3 Amarillo 6 -1.0
Gary 20 Newark 11 -0.2
Kansas City 5 Wichita 6 +0.1
If winner is:HomeAway
Saturday100.0*Chance in playoffs100.0*Average seed
El Paso vs Grand Prairie-3.8+3.4
-0.2+0.2
Laredo vs Amarillo+1.1-1.0
+0.1-0.0
Gary vs Newark-0.3+0.5
St. Paul vs Sioux Falls+0.3-0.3
Kansas City vs Wichita-0.2+0.2

What If

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

100100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910111213Count
73-91In100510*
7261-19In991114
7160-20In1000260
7059-21In1000641
6958-22In98201,442
6857-23In97303,003
6756-24In955005,963
6655-25In9190011,055
6554-26In86140019,687
6453-27In78201132,885
6352-28100.0%682822051,427
6251-29100.0573544077,542
6150-30100.04342860110,400
6049-3199.9304613100148,790
5948-3299.61945201600187,834
5847-3398.71039272310227,041
5746-3496.24293329400261,188
5645-3590.411936349100284,610
5544-3679.5010353418300293,531
5443-3763.204312828810288,377
5342-3843.80124193418300269,916
5241-3926.200169313011200239,759
5140-4013.501032035247100203,621
5039-416.406182735194000162,936
4938-422.9030214333214200124,937
4837-431.11005193528101090,592
4736-440.40001725362361062,386
4635-450.100002113135173041,076
4534-460.0000418373210025,907
4433-47Out017274022215,186
4332-48Out0214403768,720
4231-49Out063049154,599
4130-50Out021952272,299
4029-51Out0947441,054
3928-52Out053659464
3827-53Out23364215
3726-54Out178399
3625-55Out148642
3524-56Out33679
3423-57Out20805
11-33Out100450*
Total:62.0%916201712964321003,260,572

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs