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
Josh 208.8 Joe 148.6 +1.7
+0.8
Jeb 184.1 Harry 201.2 -0.6
-0.1
Matt 188.2 Luke 161.3 +0.3
Mike 205 Ken 230.9 -0.1
+0.1
Ross 184.3 Jason 96.4 +0.0
Robby 170.8 Jon 132.5 -0.1
Week of 4/5100.0*Chance in playoffs100.0*Average seed
Robby 170.5 Josh 198.5 +1.7
+1.0
Harry 229.4 Luke 200.6 +0.1
Jason 159.3 Jon 181.8 +0.1
Matt 203.7 Joe 187.5 +0.1
Jeb 179.1 Mike 192.2 -0.1
If winner is:HomeAway
Week of 4/12100.0*Chance in playoffs100.0*Average seed
Josh vs Jon+5.5Out
+0.7-0.3
Jason vs Ken+3.0Out
-0.4+0.3
Harry vs Joe+1.3Out
+0.1-0.1
Mike vs LukeOut+1.2
+0.5-0.3
Robby vs Matt-0.1+0.0

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
61-07.8%87216416,498,506
50-1Out205226240,072,894
Total:2.3%2354219256,571,400
Games Above .500
Chance Will Make Playoffs