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
Utah 28 Oregon 30 +0.5
California 31 Stanford 45 +0.1
UCLA 14 USC 36 +0.1
Washington 44 Arizona_State 18 +0.1
Oregon_State 42 Arizona 17 +0.0
If winner is:HomeHome OTAway OTAway
Week of 11/25100.0*Average seed
Oregon_State vs Oregon-1.4-1.4+1.4+1.4
Arizona vs Arizona_State+0.3+0.3-0.3-0.3
California vs UCLA-0.2-0.2+0.2+0.2

What If

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

100100100100100100100100100100100100100100
If finish:Chance will finish regular season at seed
TWW-LChance wins regular season title1234567891011121314Count
31-0No2437382,160
20-0No1319195055,862,160
0-1No1002,160
Total:No1319195055,866,480
Games Above .500
Chance Will Win Regular Season Title