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
Oregon_State 42 Arizona 17 +0.7
Utah 28 Oregon 30 -0.1
California 31 Stanford 45 +0.1
If winner is:HomeHome OTAway OTAway
Week of 11/25100.0*Average seed
Oregon_State vs Oregon+0.7+0.8-0.8-0.8
California vs UCLA-0.3-0.2+0.3+0.2

What If

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

100100100100100100100100100100100100100100
If finish:Chance will finish regular season at seed
TWW-LChance wins regular season title1234567891011121314Count
31-0No51492,160
20-0No25255055,862,160
0-1No1002,160
Total:No25255055,866,480
Games Above .500
Chance Will Win Regular Season Title