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
Aunt Sandy 88 Uncle Dave 59 +1.0
Kara 53 Poppa 95 +0.4
+0.5
Nonnie 41 Aunt Dar 100 +0.1
Spencer 92 Uncle Scott 37 +0.0
Week of 11/30100.0*Chance in playoffs100.0*Average seed
Isaac 48 Poppa 106 +4.3
+0.7
Nonnie 86 Jake 93 Out
Spencer 106 Uncle Dave 129 Out
-0.1
Kara 106 Uncle Scott 93 +0.0
If winner is:HomeAway
Week of 12/7100.0*Chance in playoffs100.0*Average seed
Nonnie vs Poppa-0.5+0.5

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
61-0Out10037,303,509
50-1Out10030,845,491
Total:Out554568,149,000
Games Above .500
Chance Will Make Playoffs