How are these numbers calculated?

Big Games

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

Week of 11/13100.0*Chance in playoffs100.0*Average seed
Jason 79 Kelly 101.4 +14.6
+1.2
Gerard 122.2 Jon 101.9 -2.8
-0.1
Garrett 91.7 Brian 112.8 -2.7
Mike 96.8 Craig 78.6 +2.6
+0.1
Eric 92.7 Ken 122 +2.0
-0.1
Logan 81.5 Kyle 100.7 +0.6
-0.1
Week of 11/20100.0*Chance in playoffs100.0*Average seed
Kelly 95.6 Mike 80.9 +22.3
+0.8
Craig 133.5 Jason 77 -5.1
-0.2
Brian 88.1 Eric 86.8 -3.0
Ken 144.7 Logan 169.6 +2.9
+0.2
Jon 105.7 Kyle 72.1 -1.8
+0.1
Garrett 117.3 Gerard 119.7 -1.4
If winner is:HomeAway
Week of 11/27100.0*Chance in playoffs100.0*Average seed
Kelly vs Jon+37.1-37.1
+0.8-0.8
Brian vs Logan-12.9+12.9
-0.1+0.1
Craig vs Eric-12.1+12.1
+0.2-0.2
Jason vs Ken-0.4+0.4
+0.1-0.1

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
71-075.0%75257,711,252
60-10.814137227,715,476
Total:37.9%3833181115,426,728
Games Above .500
Chance Will Make Playoffs