How are these numbers calculated?

Big Games

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

Week of 11/2100.0*Chance in playoffs100.0*Average seed
Brandon 60 Bill 63 +2.3
+0.2
Babs 110 Daryll 33 +2.0
+0.0
Fitz 59 Zach 62 -0.5
If winner is:HomeTieAway
Week of 11/9100.0*Chance in playoffs100.0*Average seed
Babs vs Bill-1.2+1.1+1.2
-0.4-0.0+0.4
Daryll vs Fitz-0.9+0.5+0.6
Zach vs Brandon-0.5+0.5+0.5

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-L-Tplayoffs123456789101112Count
184-0-0In334643,523,686
173-0-1In011809330,374
163-1-0In0249497,619,055
2-0-2In2643411,515
152-1-1In03466520,358
1-0-3In2873200
142-2-0In010905,658,880
1-1-2In138711,660
0-0-4In1001
131-2-1In397252,343
0-1-3In59573
121-3-091.2%091015201,751,325
0-2-294.109413202,817
110-3-184.0841761038,489
100-4-036.33605223150198,296
Total:98.6%073556000000019,919,072
Games Above .500
Chance Will Make Playoffs