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
Carolyn 96 Randy 68 +17.7
+1.2
Scott 100 Lin 99 +3.8
+0.2
Darin 48 Matt 69 +1.8
Dane 74 Lori 56 -1.4
-0.1
Nicole 116 Jake 83 +1.2
+0.1
If winner is:HomeAway
Week of 11/29100.0*Chance in playoffs100.0*Average seed
Carolyn vs NicoleIn-17.1
+1.4-1.4
Lin vs Dane-3.7+3.7
Jake vs Darin-3.0+3.0
-0.1+0.1
Matt vs Lori-0.6+0.6
-0.1+0.1
Randy vs Scott+0.3-0.3

What If

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

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910Count
82-0In42331782,408,481
71-199.8%117834291004,818,066
60-231.9131412262,411,393
Total:82.9%1117819151310519,637,940
Games Above .500
Chance Will Make Playoffs