How are these numbers calculated?

Big Games

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

Week of 11/23100.0*Chance in playoffs100.0*Average seed
Spencer 92 Uncle Scott 37 -0.2
-0.1
Aunt Sandy 88 Uncle Dave 59 +0.2
+0.1
Isaac 75 Jake 86 -0.2
+0.1
Kara 53 Poppa 95 -0.2
Week of 11/30100.0*Chance in playoffs100.0*Average seed
Kara 106 Uncle Scott 93 -0.1
Isaac 48 Poppa 106 +0.1
Nonnie 86 Jake 93 +0.1
If winner is:HomeAway
Week of 12/7100.0*Chance in playoffs100.0*Average seed
Isaac vs Uncle Scott-0.6+0.9
Nonnie vs Poppa-0.2+0.2

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
41-0Out554528,428,834
30-1Out10039,720,166
Total:Out23195868,149,000
Games Above .500
Chance Will Make Playoffs