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 -8.5
-0.5
Amy 91.46 Justin 143.52 +1.0
Nick 82.22 Adam 116.64 -0.7
-0.0
Andy 88.24 Travis 125.5 -0.0
Week of 12/1100.0*Chance in playoffs100.0*Average seed
Amy 104.22 Ryan 91.7 -16.2
-0.6
Andy 141.42 Laurel 72.96 +3.8
+0.1
Adam 94.26 Travis 152.68 +3.2
+0.1
If winner is:HomeAway
Week of 12/8100.0*Chance in playoffs100.0*Average seed
Andy vs Ryan-32.0+10.1
-0.8+0.2
Adam vs Justin-15.1+8.6
-0.2+0.1
Amy vs Nick-2.1+6.8
-0.1+0.4
Laurel vs Travis-5.6+1.8
-0.1+0.0

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
81-096.4%6135489,877,136
70-154.274740628,441,472
Total:86.3%4838121118,318,608
Games Above .500
Chance Will Make Playoffs