How are these numbers calculated?

Big Games

How we did last week and who we should root for this week.   Explain

Week of 9/10100.0*Chance in playoffs100.0*Average seed
Kellen 78.52 Tom 58.48 +10.7
+0.9
Josh 94.4 Amber 93.02 +0.1
If winner is:HomeAway
Week of 9/17100.0*Chance in playoffs100.0*Average seed
Kellen vs Josh+8.9-8.9
+0.8-0.8
Tom vs Harry+0.2-0.2
Amber vs Mark-0.1+0.1
Garrett vs Bill+0.1-0.1

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
1312-0In10015,968
1211-1In9910123,082
1110-2In9270556,362
109-3In67303001,520,838
98-4In2444265002,782,572
87-599.9%2143333153003,605,575
76-683.1004163231143003,397,516
65-717.6003153032164002,343,239
54-80.20031532331521,171,960
43-9Out005244426415,617
32-10Out03277098,574
21-11Out059514,221
10-12Out1004,300
Total:73.8%1514131211986542116,049,824
Games Above .500
Chance Will Make Playoffs