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
Nicole 116 Jake 83 -20.6
-1.2
Dane 74 Lori 56 -6.0
-0.2
Scott 100 Lin 99 +2.1
+0.1
Darin 48 Matt 69 +1.3
+0.0
Carolyn 96 Randy 68 -0.4
-0.1
If winner is:HomeAway
Week of 11/29100.0*Chance in playoffs100.0*Average seed
Jake vs Darin+35.6-35.6
+1.1-1.1
Carolyn vs Nicole+6.4-8.7
+0.1-0.1
Matt vs Lori-1.7+2.3
+0.0-0.1
Lin vs Dane+0.7-0.4

What If

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

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910Count
72-0In0092038326,818,526
61-132.4%02304223316,057,317
50-2Out247519,253,977
Total:37.4%002492222251632,129,820
Games Above .500
Chance Will Make Playoffs