How are these numbers calculated?

Big Games

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

Week of 11/17100.0*Chance in playoffs100.0*Average seed
Laurel 94.74 Jenn 97.14 Out
Shara 71.8 Tom H 63.14 Out
-0.2
Tom K 52.98 Riley 68.8 Out
+0.1
Dave 93.34 Eric 88.58 -0.1
If winner is:HomeAway
Week of 11/24100.0*Chance in playoffs100.0*Average seed
Dave vs Tom H-0.2+0.4
Justin vs Tom K+0.1-0.2

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
42-0Out246882,637,289
31-1Out544619,150,639
20-2Out10028,351,480
Total:Out1247550,139,408
Games Above .500
Chance Will Make Playoffs