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
Jake 142 Brenden 123 -5.6
-0.7
Swan 144 Eric 110 +2.4
-0.1
Graham 125 Tim 175 +0.1
+0.1
If winner is:HomeAway
Week of 11/29100.0*Chance in playoffs100.0*Average seed
Mahoney vs EricIn-6.3
+0.1-0.1
Tim vs Brenden-6.3In
-0.5+0.5
Swan vs Ben-0.2+0.2

What If

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

100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678Count
72-0In563866,432,622
61-1In220413712,850,695
50-275.0%75256,434,619
Total:93.7%15192237625,717,936
Games Above .500
Chance Will Make Playoffs