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
Daryll 47 Fitz 50 +17.6
+1.3
Yarroch 69 Jake 59 -3.5
-0.1
Chris 94 Zach 69 +1.4
-0.1
Babs 57 Kyle 45 +1.4
-0.1
Brandon 58 Bill 42 -0.5
-0.1
Josh 51 Jason 87 -0.2
If winner is:HomeTieAway
Week of 12/7100.0*Chance in playoffs100.0*Average seed
Chris vs Fitz-46.8-10.8+47.3
-2.4-0.2+2.4
Kyle vs Jason-2.7+0.9+2.7
-0.1-0.0+0.1
Brandon vs Zach+2.6+1.1-2.7
+0.2+0.0-0.2
Babs vs Yarroch-2.0+0.5+2.0
-0.1-0.2+0.1
Daryll vs Jake+0.9-0.8-0.8
+0.2-0.2-0.2
Josh vs Bill+0.1-0.6-0.1
-0.0-0.3+0.0

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-L-Tplayoffs123456789101112Count
141-0-095.1%17213024124111,282,400
130-0-137.082938214578,242
120-1-01.017213728611,284,486
Total:47.8%0410141276111814323,145,128
Games Above .500
Chance Will Make Playoffs