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 -20.7
-1.4
Dane 74 Lori 56 -4.3
-0.1
Scott 100 Lin 99 +3.6
+0.1
Carolyn 96 Randy 68 -2.2
-0.2
Darin 48 Matt 69 +1.3
If winner is:HomeAway
Week of 11/29100.0*Chance in playoffs100.0*Average seed
Jake vs Darin+33.5-33.4
+1.2-1.2
Carolyn vs Nicole+4.4-4.4
+0.1-0.1
Matt vs Lori-1.5+1.5
+0.1-0.1
Lin vs Dane+1.2-1.2
Randy vs Scott+0.1-0.1

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
72-0In1282235322,412,586
61-123.5%0320363194,815,671
50-2Out138622,409,683
Total:36.8%012610181825209,637,940
Games Above .500
Chance Will Make Playoffs