How are these numbers calculated?

Big Games

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

Week of 11/28100.0*Chance in playoffs100.0*Average seed
Brandon 58 Bill 42 +0.3
+1.0
Chris 94 Zach 69 +0.2
-0.3
Daryll 47 Fitz 50 Out
+0.1
Josh 51 Jason 87 +0.1
Babs 57 Kyle 45 -0.2
If winner is:HomeTieAway
Week of 12/7100.0*Chance in playoffs100.0*Average seed
Brandon vs Zach+0.6OutOut
+1.2-0.1-0.9
Babs vs Yarroch-0.4-0.4+0.3
-0.1-0.1+0.1
Josh vs Bill-0.4-0.1+0.2
-0.3-0.2+0.2
Kyle vs Jason-0.3-0.3+0.2
Chris vs Fitz+0.2-0.2-0.2
-0.2+0.1+0.1
Daryll vs Jake-0.4-0.3+0.2

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-L-Tplayoffs123456789101112Count
121-0-01.0%0151336351128,410,349
110-0-1Out64242101,702,083
100-1-0Out1663338,036,568
Total:0.4%00251516421968,149,000
Games Above .500
Chance Will Make Playoffs