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 -1.8
-0.5
Isaac 75 Jake 86 -1.5
Aunt Sandy 88 Uncle Dave 59 +0.9
+0.1
Nonnie 41 Aunt Dar 100 +0.6
+0.1
Kara 53 Poppa 95 -0.2
-0.2
Week of 11/30100.0*Chance in playoffs100.0*Average seed
Kara 106 Uncle Scott 93 -0.3
Nonnie 86 Jake 93 +0.2
Spencer 106 Uncle Dave 129 -0.1
If winner is:HomeAway
Week of 12/7100.0*Chance in playoffs100.0*Average seed
Isaac vs Uncle Scott-0.8+0.8
Nonnie vs Poppa-0.3+0.3

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
41-0Out50509,642,896
30-1Out1009,643,032
Total:Out25255019,285,928
Games Above .500
Chance Will Make Playoffs