How are these numbers calculated?

Big Games

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

Week of 11/24100.0*Chance in playoffs100.0*Average seed
Laurel 95.88 Ryan 94.36 -13.4
-0.6
Nick 82.22 Adam 116.64 -3.8
-0.1
Amy 91.46 Justin 143.52 +2.9
Andy 88.24 Travis 125.5 -0.4
-0.1
Week of 12/1100.0*Chance in playoffs100.0*Average seed
Amy 104.22 Ryan 91.7 -25.2
-0.7
Adam 94.26 Travis 152.68 +5.8
+0.2
Andy 141.42 Laurel 72.96 +5.6
+0.2
If winner is:HomeAway
Week of 12/8100.0*Chance in playoffs100.0*Average seed
Andy vs Ryan-28.3+28.3
-0.7+0.7
Adam vs Justin-12.9+12.9
-0.3+0.3
Laurel vs Travis-8.7+8.7
-0.2+0.2
Amy vs Nick-7.9+7.9
-0.3+0.3

What If

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

100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678Count
81-097.6%7324219,290,292
70-141.1833421719,291,644
Total:69.3%412822938,581,936
Games Above .500
Chance Will Make Playoffs