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 +16.6
+0.5
Nick 82.22 Adam 116.64 -5.4
-0.1
Amy 91.46 Justin 143.52 +4.6
+0.1
Andy 88.24 Travis 125.5 -0.3
Week of 12/1100.0*Chance in playoffs100.0*Average seed
Andy 141.42 Laurel 72.96 -21.2
-0.5
Adam 94.26 Travis 152.68 +9.8
+0.2
Amy 104.22 Ryan 91.7 +1.6
If winner is:HomeAway
Week of 12/8100.0*Chance in playoffs100.0*Average seed
Laurel vs Travis+19.3Out
+0.6-0.6
Adam vs Justin-11.1+11.1
-0.2+0.2
Amy vs Nick-9.8+9.8
-0.2+0.2
Andy vs Ryan+9.6-9.6
+0.2-0.2

What If

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

100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678Count
71-038.6%830412019,295,068
60-1Out10019,286,868
Total:19.3%415216038,581,936
Games Above .500
Chance Will Make Playoffs