How are these numbers calculated?

Big Games

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

Week of 11/22100.0*Chance in playoffs100.0*Average seed
Barret 73 Brandon 95 +2.8
+0.3
Kelly 130 Clark 76 +0.8
+0.0
JJ 79 Justin 45 +0.6
Hugh 58 Greg 91 -0.5
-0.1
Bertram 101 Paul 70 +0.1
-0.0
Chris 68 Dale 100 -0.1
Week of 11/29100.0*Chance in playoffs100.0*Average seed
Hugh 106 Brandon 74 -12.4
-0.6
Barret 105 Clark 93 +4.8
+0.3
JJ 68 Greg 69 -4.5
-0.2
Bertram 72 Justin 113 -1.8
-0.1
Chris 113 Paul 108 -0.2
If winner is:HomeAway
Week of 12/6100.0*Chance in playoffs100.0*Average seed
Clark vs Hugh-0.3+0.2
Brandon vs JJ+0.3-0.2
Greg vs Bertram-0.1+0.2

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-Lplayoffs123456789101112Count
61-0Out643617,039,812
50-1Out1585030,526,780
Total:Out3367047,566,592
Games Above .500
Chance Will Make Playoffs

Lottery

We are out of the playoffs. Here are the big games and what ifs for draft seeds.
Although it might be more fun to go down swinging.

Big Games

Week of 11/22100.0*Lottery seed
Barret 73 Brandon 95 -0.3
Hugh 58 Greg 91 +0.2
Bertram 101 Paul 70 +0.0
Kelly 130 Clark 76 -0.0
Week of 11/29100.0*Lottery seed
Hugh 106 Brandon 74 +0.6
Barret 105 Clark 93 -0.3
JJ 68 Greg 69 +0.2
Bertram 72 Justin 113 +0.1
Chris 113 Paul 108 +0.0
If winner is:HomeAway
Week of 12/6100.0*Lottery seed
Clark vs Hugh+0.3-0.2
Brandon vs JJ-0.3+0.2
Greg vs Bertram+0.1-0.2

What If

100100100100100100100100100100100100
If finish:Chance will finish season at seed
TWW-L123456789101112
61-06436
50-115850
Total:33670