How are these numbers calculated?

Big Games

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

Week of 10/5100.0*Chance in playoffs100.0*Average seed
Dan 71 Josh 101.7 -24.4
-0.8
Andrew 86.9 Derek 67.8 -0.0
Mark 95.9 Jake 90.9 +0.0
If winner is:HomeAway
Week of 10/12100.0*Chance in playoffs100.0*Average seed
Mark vs Dan-5.5+14.9
-0.2+0.6
Jake vs Josh+12.3-8.0
+0.2-0.1
Michael vs Andrew-0.1+0.0

What If

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

100100100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TWW-Lplayoffs123456789101112Count
118-099.5%100057,601
107-195.895140508,172
96-283.37591701,916,078
85-359.93822382003,800,010
74-433.1102445192004,399,654
63-513.111215382771003,081,209
52-63.503052542213001,287,244
41-70.61083642131294,613
30-80.000223482731,883
Total:41.1%2516281485310015,376,464
Games Above .500
Chance Will Make Playoffs