How are these numbers calculated?

Big Games

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

Week of 11/23100.0*Chance in playoffs100.0*Average seed
Jake 54 Josh 45 +6.3
+1.1
Fitz 54 Kyle 41 -1.5
-0.1
Daryll 69 Yarroch 54 +1.5
Brandon 60 Chris 37 In
-0.2
Babs 58 Jason 60 +0.1
Zach 36 Bill 46 -0.1
Week of 11/30100.0*Chance in playoffs100.0*Average seed
Jake 63 Bill 34 +0.8
Brandon 60 Kyle 48 -0.2
Babs 51 Daryll 76 +0.1
If winner is:HomeTieAway
Week of 12/7100.0*Chance in playoffs100.0*Average seed
Jake vs Yarroch+0.2-0.2-0.2
Brandon vs Josh-0.2-0.2+0.2

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-L-Tplayoffs123456789101112Count
191-0-0In495111,397,559
17-18In10011,747,569*
Total:In247623,145,128

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs