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 +11.9
+0.9
Purvis 81.4 McNichols 87.3 -1.9
+0.1
Metheny 85.6 M Crouch 89.7 -1.7
+0.1
Smith 131.4 S Crouch 97.7 -1.4
+0.1
Lippincott 149.4 Salsberry 111.8 -0.4
-0.1
If winner is:HomeAway
Week of 11/16100.0*Chance in playoffs100.0*Average seed
Vanzant vs Smith+19.3Out
+0.6-0.6
McNichols vs Barnett-4.2+4.2
-0.1+0.1
M Crouch vs Purvis-1.7+1.7
Salsberry vs Metheny+0.1-0.1

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
72-077.3%1760236,434,453
61-1Out653512,853,157
50-2Out229501716,430,330
Total:19.3%4153925134025,717,940
Games Above .500
Chance Will Make Playoffs