How are these numbers calculated?

Big Games

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

Week of 11/17100.0*Average seed
Dave 93.34 Eric 88.58 -0.1
Ethan 111.1 Shawn 96.48 -0.1
Laurel 94.74 Jenn 97.14 +0.1
If winner is:HomeAway
Week of 11/24100.0*Average seed
Jenn vs Eric-0.2+0.2
Erica vs Ethan+0.2-0.2
Laurel vs Riley-0.1+0.1

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
112-0In1004,180,478
101-1In79218,354,479
90-2In2659154,178,179
Total:In7125416,713,136
Games Above .500
Chance Will Make Playoffs