How are these numbers calculated?

Big Games

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

Week of 11/13100.0*Average seed
K. Jackson 7 Chick 4 +0.5
Kato 4 Zwiefel 12 -0.1
If winner is:HomeAway
Week of 11/20100.0*Average seed
M. Jackson vs K. Jackson-0.9+0.9
Witcraft vs Kato+0.1-0.4

What If

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

100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789Count
31-0Out732723,487,947
20-1Out10023,488,561
Total:Out37135046,976,508
Games Above .500
Chance Will Make Playoffs