How are these numbers calculated?

Big Games

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

Week of 11/20100.0*Average seed
Tim 123 Kevin 94 -0.2
Connor 87.4 Kevin 78.4 -0.1
Sam 106 Hannibal 114 -0.1
Kamali 103 Sam 99.2 +0.1
If winner is:HomeAway
Week of 12/4100.0*Average seed
Kevin vs Hannibal+0.4-0.4

What If

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

100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-OTLplayoffs123456Count
81-00In1005,140,227
70-01In28725,140,917
Total:In643610,281,144
Points
Chance Will Make Playoffs