How are these numbers calculated?

Big Games

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

Week of 10/31100.0*Chance in playoffs100.0*Average seed
Brandon 81 James 71 +0.1
If winner is:HomeTieAway
Week of 11/7100.0*Chance in playoffs100.0*Average seed
Cody vs Brandon-0.4+0.0+0.0
-0.1-0.0+0.0

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
TWW-L-Tplayoffs123456789101112Count
11.5-13In10025,959,448*
113-2-0In92441,480,251
2-1-2In94335,847
1-0-4In1002
10.52-2-1In71121748,686
1-1-3In67112236
102-3-0In5320270119,831
1-2-2In562222557
9.51-3-1In17255812,594
0-2-3In2040405
91-4-099.9%725571004,310
0-3-2In2914577
8.50-4-196.2126519452
80-5-055.7174836805,774
Total:100.0%9900000027,627,400

* Row combines multiple less frequent records.

Games Above .500
Chance Will Make Playoffs