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 +19.3
+1.3
Carlos 105.36 Ole 116.1 -1.9
-0.1
Suzie 106.2 Noah 89.76 +1.7
Mike 77.06 Mark 50.3 -0.5
+0.1
Sidney 116.62 Michael 92.28 -0.4
-0.0
Chris 79.68 Josh 104.86 +0.2
+0.0
If winner is:HomeAway
Week of 11/26100.0*Chance in playoffs100.0*Average seed
Josh vs Russell-0.8In
-0.4+1.4
Steve vs Mark-2.1+1.4
+0.2-0.1
Ole vs Suzie-0.1+0.3
-0.0+0.2
Chris vs Sidney+0.3-0.1
+0.2-0.1
Michael vs Noah-0.2+0.1

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
92-0In524811,521,512
81-1In0274226640,927,703
70-282.0%0314313315309,267,793
Total:97.3%102728198520061,717,008
Games Above .500
Chance Will Make Playoffs