How are these numbers calculated?

Big Games

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

Week of 10/5100.0*Average seed
Sara 72.6 Ryan 57.1 +0.7
Andrew 86.9 Derek 67.8 +0.0
If winner is:HomeAway
Week of 10/12100.0*Average seed
David vs Sara-0.6+0.6
Jake vs Josh-0.1+0.1
Mark vs Dan+0.0-0.1

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
108-0Out100012,019
97-1Out9550126,753
86-2Out732710736,748
75-3Out275517102,247,310
64-4Out22543245004,007,960
53-5Out0113373711104,322,596
42-6Out00428462022,788,776
31-7Out02224927984,611
20-8Out22573149,691
Total:Out916171817137315,376,464
Games Above .500
Chance Will Make Playoffs