How are these numbers calculated?

Big Games

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

Week of 10/13100.0*Chance in playoffs100.0*Average seed
Pete 104 Colin 113 -10.0
-0.9
CoreyB 87 Spar 123.5 -1.0
NickM 116 Aaron 75 -0.9
CoreyA 134.5 Stigs 81.5 -0.8
NickN 119.5 Bill 103.5 -0.3
If winner is:HomeAway
Week of 10/20100.0*Chance in playoffs100.0*Average seed
Stigs vs Pete-12.6+12.6
-0.8+0.7
Colin vs NickM+1.5-1.5
Aaron vs NickN+1.4-1.4
+0.1-0.1
Bill vs CoreyB-0.8+0.8
Spar vs CoreyA+0.3-0.3

What If

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

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910Count
107-0In7702338,122
96-1In39105010258,187
85-2100.0%6145522300773,432
74-396.904103235173001,291,345
63-445.000111333716201,292,082
52-51.60021745342774,190
41-6Out0136819257,818
30-7Out0504938,324
Total:61.7%441513131414131024,723,500
Games Above .500
Chance Will Make Playoffs