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
Purdue 20 Wisconsin 49 -0.7
Illinois 0 Iowa 28 +0.2
Michigan 20 Indiana 10 +0.2
Michigan_State 16 Ohio_State 17 +0.2
Rutgers 0 Penn_State 39 +0.2
If winner is:HomeHome OTAway OTAway
Week of 11/25100.0*Average seed
Indiana vs Purdue-0.7-0.7+0.7+0.7
Northwestern vs Illinois+0.2+0.3-0.2-0.3
Maryland vs Rutgers+0.2+0.2-0.2-0.2
Penn_State vs Michigan_State+0.1+0.1-0.1-0.1

What If

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

100100100100100100100100100100100100100100
If finish:Chance will finish regular season at seed
TWW-LChance wins regular season title1234567891011121314Count
21-0No87132,160
10-0No502519655,862,160
0-1No123738132,160
Total:No502519655,866,480
Games Above .500
Chance Will Win Regular Season Title