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 +0.5
+0.8
Chris 94 Zach 69 +0.5
-0.1
Daryll 47 Fitz 50 Out
+0.1
Josh 51 Jason 87 +0.2
+0.1
Babs 57 Kyle 45 +0.1
-0.2
If winner is:HomeTieAway
Week of 12/7100.0*Chance in playoffs100.0*Average seed
Brandon vs Zach+0.4OutOut
+1.2-0.5-1.2
Josh vs Bill-0.4-0.1+0.4
-0.2-0.1+0.3
Babs vs Yarroch-0.4-0.4+0.4
-0.1-0.1+0.1
Kyle vs Jason-0.3-0.3+0.4
Chris vs Fitz+0.1-0.1-0.1
-0.2+0.1+0.2
Daryll vs Jake-0.3-0.2+0.3

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
121-0-00.9%0162034291011,283,887
110-0-1Out3294720578,340
100-1-0Out1495011,282,901
Total:0.4%003101715302523,145,128
Games Above .500
Chance Will Make Playoffs