How are these numbers calculated?

Big Games

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

Week of 11/9100.0*Chance in playoffs100.0*Average seed
Barnett 123.8 Vanzant 147.1 +6.6
+0.2
Smith 131.4 S Crouch 97.7 -6.1
Purvis 81.4 McNichols 87.3 -1.0
Metheny 85.6 M Crouch 89.7 -0.9
Lippincott 149.4 Salsberry 111.8 -0.5
-0.1
If winner is:HomeAway
Week of 11/16100.0*Chance in playoffs100.0*Average seed
Vanzant vs Smith+16.5Out
+0.3-0.5
McNichols vs Barnett-1.4+9.3
-0.0+0.1
M Crouch vs Purvis-0.5+1.5

What If

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

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910Count
72-059.4%2584143,181,966
61-1Out792135,282,385
50-2Out95336206,407,869
Total:30.2%129541330084,872,220
Games Above .500
Chance Will Make Playoffs