How are these numbers calculated?

Big Games

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

Week of 4/27100.0*Chance in playoffs100.0*Average seed
Lewis 4 Wade 7 -21.1
-0.9
vanGerwen 7 Lewis 0 -12.6
-0.5
Wright 7 Taylor 3 +5.1
+0.1
vanBarneveld 4 Anderson 7 -0.7
vanGerwen 6 Chisnall 6 -0.1
-0.0
If winner is:HomeDrawAway
Week of 5/4100.0*Chance in playoffs100.0*Average seed
Lewis vs Wright+17.4-1.1-7.8
+1.0+0.2-0.6
Taylor vs vanGerwen-4.8-0.5+2.1
-0.1-0.1+0.1
Chisnall vs vanBarneveld+0.9+1.8-1.8
-0.0-0.1+0.1
Anderson vs Wade-0.3-0.3+0.8
+0.2-0.0-0.2

What If

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

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-D-Lplayoffs12345678910RelegatedCount
172-0-068.9%1256274No4,427,593,684
161-1-016.311642375No6,704,543,404
151-0-11.011247382No14,956,161,614
0-2-0Out352432No2,483,955,289
140-1-1Out126424No10,920,085,769
130-0-2Out3763No11,905,428,920
Total:8.4%1711243621No51,397,768,680
Games Above .500
Chance Will Make Playoffs