How are these numbers calculated?

Big Games

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

Week of 11/9100.0*Average seed
Johnson 129.6 Bob 156.17 -0.1
Alex 156.44 Bequette 91.86 +0.1
If winner is:HomeAway
Week of 11/16100.0*Average seed
Alex vs Bob+0.3-0.8

What If

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

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs12345678910Count
123-0In10020,742,356
112-1In732715,490,221
101-2In150853,385,289
90-3In100230,354
Total:In8201839,848,220
Games Above .500
Chance Will Make Playoffs