How are these numbers calculated?

Big Games

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

Week of 11/18100.0*Average seed
Michigan 20 Indiana 10 -0.7
Nebraska 28 Maryland 7 +0.2
Minnesota 29 Northwestern 12 +0.1
Purdue 20 Wisconsin 49 +0.1
Illinois 0 Iowa 28 -0.1
If winner is:HomeHome OTAway OTAway
Week of 11/25100.0*Average seed
Indiana vs Purdue+0.5+0.5-0.5-0.5
Northwestern vs Illinois-0.2-0.3+0.2+0.3
Maryland vs Rutgers-0.3-0.2+0.2+0.2

What If

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

100100100100100100100100100100100100100100
If finish:Chance will finish regular season at seed
TWW-LChance wins regular season title1234567891011121314Count
41-0No50502,160
30-0No25502555,862,160
0-1No49512,160
Total:No25502555,866,480
Games Above .500
Chance Will Win Regular Season Title