How are these numbers calculated?

Big Games

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

Week of 11/22100.0*Chance in playoffs100.0*Average seed
Darin 48 Matt 69 -12.2
-0.7
Dane 74 Lori 56 -7.0
-0.3
Nicole 116 Jake 83 +1.6
Scott 100 Lin 99 +1.4
+0.1
Carolyn 96 Randy 68 -0.9
-0.0
If winner is:HomeAway
Week of 11/29100.0*Chance in playoffs100.0*Average seed
Jake vs Darin-39.8+39.8
-1.0+1.0
Matt vs Lori+3.6-5.0
+0.1-0.2
Carolyn vs Nicole+2.2-3.0
+0.1-0.1
Lin vs Dane+1.0-0.5
+0.1-0.1
Randy vs Scott-0.1+0.0

What If

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

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910Count
72-099.9%1924352206,820,013
61-162.221249326016,059,788
50-2Out36362819,250,019
Total:52.3%46132926138032,129,820
Games Above .500
Chance Will Make Playoffs