How are these numbers calculated?

Big Games

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

Week of 4/20100.0*Chance in playoffs100.0*Average seed
Chisnall 7 Lewis 3 -21.7
-0.8
Chisnall 7 Taylor 2 +5.3
+0.1
van Gerwen 7 van Barneveld 2 +3.5
+0.1
Wright 7 Wade 3 -1.9
-0.1
Taylor 7 Anderson 4 +0.1
If winner is:HomeDrawAway
Week of 4/27100.0*Chance in playoffs100.0*Average seed
Lewis vs van Gerwen+24.7+5.7-12.3
+0.9+0.2-0.5
Wade vs Lewis-20.9-4.9+14.4
-0.9-0.1+0.6
Taylor vs Wright-5.5-1.8+5.0
-0.1-0.0+0.1
Chisnall vs van Gerwen-2.5-0.1+0.9
-0.2-0.0+0.1
Anderson vs van Barneveld-0.7+0.5+0.5

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-Lplayoffs12345678910EliminatedCount
214-0-0In88012No469,797,836
203-1-0In155432No1,107,697,948
193-0-199.0%018631710No2,585,831,414
2-2-099.3016661710No971,281,170
182-1-183.5136461510No4,451,607,680
1-3-082.5135471610No369,394,747
172-0-243.3083543130No5,029,220,691
1-2-140.873445140No2,492,668,525
0-4-037.963248140No51,407,662
161-1-27.807394760No5,524,980,898
0-3-16.506394960No453,648,973
151-0-30.3001058301No4,018,770,120
0-2-20.00960311No1,477,455,586
140-1-3Out0276013No2,100,925,954
130-0-4Out14851No1,105,740,676
Total:39.8%0516182224123No32,210,429,880
Games Above .500
Chance Will Make Playoffs