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*Average seed
Barnett 123.8 Vanzant 147.1 -0.2
Lippincott 149.4 Salsberry 111.8 -0.2
Purvis 81.4 McNichols 87.3 +0.1
Metheny 85.6 M Crouch 89.7 +0.0
If winner is:HomeAway
Week of 11/16100.0*Average seed
McNichols vs Barnett-0.1+0.7
M Crouch vs Purvis+0.0-0.1
Salsberry vs Metheny+0.0-0.1

What If

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

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910Count
42-0Out36451721,338,229
31-1Out13513518,521,257
20-2Out10065,012,734
Total:Out14118484,872,220
Games Above .500
Chance Will Make Playoffs