How are these numbers calculated?

Big Games

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

Week of 11/19100.0*Chance in playoffs100.0*Average seed
Steve 103.92 Russell 114.6 -24.3
-1.4
Carlos 105.36 Ole 116.1 -2.5
-0.1
Chris 79.68 Josh 104.86 +1.6
+0.1
Suzie 106.2 Noah 89.76 +1.4
+0.1
Mike 77.06 Mark 50.3 +0.3
+0.1
Week of 11/26100.0*Chance in playoffs100.0*Average seed
Steve 134.02 Mark 85.46 +23.9
+1.3
Chris 97.98 Sidney 112.93 +2.1
Ole 90.39 Suzie 89.46 -1.3
Michael 65.68 Noah 110.78 -0.4
Josh 96.4 Russell 58.84 +0.3
+0.1
Carlos 101.69 Mike 94.8 -0.1
If winner is:HomeAway
Week of 12/3100.0*Chance in playoffs100.0*Average seed
Steve vs Carlos+40.2-40.1
+1.5-1.5
Sidney vs Noah+9.5-9.5
+0.1-0.1
Chris vs Russell-9.2+9.2
Michael vs Ole-0.5+0.5
+0.2-0.2
Suzie vs Mike-0.4+0.4
Josh vs Mark+0.3-0.3
+0.2-0.2

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
71-098.3%4193430122014,142,745
60-118.01844326114,147,991
Total:58.1%2917151523163028,290,736
Games Above .500
Chance Will Make Playoffs