How are these numbers calculated?

Big Games

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

Week of 10/12100.0*Chance in playoffs100.0*Average seed
Erin 81.12 Brandon 89.38 +13.8
+0.7
Joe 115.1 AJ/Sean 109.38 -0.9
-0.0
Andrew 121.8 Michael 87.58 -0.9
-0.0
Ermali 74.26 Kevin 63.64 -0.9
-0.0
Oscar 89.88 Jonathan 66.58 -0.2
If winner is:HomeTieAway
Week of 10/19100.0*Chance in playoffs100.0*Average seed
Ermali vs Brandon-12.5-7.1+12.7
-0.7-0.4+0.7
Andrew vs AJ/Sean-0.6+2.7+3.0
-0.0+0.1+0.2
Erin vs Michael-1.0+2.0+1.3
-0.0+0.1+0.1
Joe vs Jonathan*-0.0+2.8-0.1
-0.0+0.2-0.0
Oscar vs Kevin-1.0+1.9+1.4
-0.0+0.1+0.0

* A starred number could be exactly 0 or just really small. The simulation did not run long enough to know.

What If

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

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-L-Tplayoffs12345678910Count
128-0-0In100394,967
11.57-0-1In955108,705
117-1-0In891102,212,449
6-0-2In69292013,217
10.56-1-1In563860534,630
5-0-399.8%24462450964
106-2-0100.0454510005,393,289
5-1-299.415423391055,363
4-0-493.863134223332
9.55-2-198.49353915201,106,268
4-1-379.619333817303,212
3-0-533.333673
95-3-096.552842223007,283,263
4-2-270.1052440255093,705
3-1-417.8131446316101
8.54-3-159.0031839329101,224,368
3-2-315.611438351114,286
2-1-5Out50502
84-4-047.30112343814105,907,169
3-3-29.80193340161082,552
2-2-42.2214254315193
7.53-4-15.800527432220783,230
2-3-30.10529451922,673
1-2-5Out50502
73-5-03.2003214328402,939,414
2-4-20.103224725338,708
1-3-4Out514651637
6.52-5-10.00217453150286,443
1-4-3Out02235322815
62-6-00.00112423880866,146
1-5-2Out0118493109,272
0-4-4Out44569
5.51-6-1Out01144838055,002
0-5-3Out23163390
51-7-0Out0944460135,584
0-6-2Out123734867
4.50-7-1Out1167864,281
40-8-0Out07831015,809
Total:69.6%19181715139621029,557,020
Games Above .500
Chance Will Make Playoffs