How are these numbers calculated?

Big Games

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

Week of 3/29100.0*Chance in playoffs100.0*Average seed
Matt 188.2 Luke 161.3 -7.9
-0.3
Jeb 184.1 Harry 201.2 -4.0
-0.1
Ross 184.3 Jason 96.4 +3.8
+0.1
Mike 205 Ken 230.9 -3.4
-0.1
Josh 208.8 Joe 148.6 -0.5
Robby 170.8 Jon 132.5 +0.2
Week of 4/5100.0*Chance in playoffs100.0*Average seed
Harry 229.4 Luke 200.6 -40.0
-1.0
Jason 159.3 Jon 181.8 +4.5
+0.2
Ross 226.7 Ken 218.4 +4.5
+0.2
Robby 170.5 Josh 198.5 -1.6
-0.1
Matt 203.7 Joe 187.5 -0.3
If winner is:HomeAway
Week of 4/12100.0*Chance in playoffs100.0*Average seed
Harry vs JoeOut+15.3
-0.2+0.3
Mike vs LukeOut+4.4
-1.1+0.6
Josh vs JonOut+3.5
-0.5+0.2
Jason vs Ken-0.2+0.2
Robby vs Matt-0.1+0.0

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
61-012.9%1350271037,019,193
50-1Out689619,552,207
Total:8.4%8332037256,571,400
Games Above .500
Chance Will Make Playoffs