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
Amy 91.46 Justin 143.52 -12.2
-0.3
Laurel 95.88 Ryan 94.36 -4.8
Nick 82.22 Adam 116.64 -4.4
-0.1
Andy 88.24 Travis 125.5 -0.1
Week of 12/1100.0*Chance in playoffs100.0*Average seed
Amy 104.22 Ryan 91.7 +33.2
+0.8
Andy 141.42 Laurel 72.96 +9.4
+0.3
Adam 94.26 Travis 152.68 +6.7
+0.2
Nick 139.9 Justin 134.9 -0.2
If winner is:HomeAway
Week of 12/8100.0*Chance in playoffs100.0*Average seed
Amy vs Nick+10.4-32.8
+0.2-0.8
Adam vs Justin-15.7+8.9
-0.2+0.1
Andy vs Ryan+6.7-2.1
+0.4-0.1
Laurel vs Travis-5.7+1.8
-0.1+0.0

What If

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

100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678Count
81-095.9%5838489,885,952
70-152.764741628,432,656
Total:85.5%4540132118,318,608
Games Above .500
Chance Will Make Playoffs