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 +0.5
+0.2
Chisnall 7 Taylor 2 +0.5
+0.2
van Gerwen 7 van Barneveld 2 +0.1
Wright 7 Wade 3 +0.1
If winner is:HomeDrawAway
Week of 4/27100.0*Chance in playoffs100.0*Average seed
Chisnall vs van Gerwen+12.0+0.7-4.1
+0.8+0.2-0.3
Taylor vs Wright-1.3-0.4+1.2
-0.1-0.0+0.1
Wade vs Lewis+1.5+0.3-1.0
Lewis vs van Gerwen-1.5-0.5+0.8
-0.1-0.1+0.1
Anderson vs van Barneveld-0.8+0.5+0.5

What If

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

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-D-Lplayoffs12345678910EliminatedCount
183-0-073.8%027462330No994,454,210
172-1-029.6042545223No2,016,398,384
162-0-14.1042645240No5,111,186,204
1-2-02.603244727No1,280,282,191
151-1-10.000430642No6,215,235,665
0-3-00.00227692No257,180,833
141-0-2Out067717No7,327,412,639
0-2-1Out047918No1,807,752,785
130-1-2Out04753No4,127,750,563
120-0-3Out1288No3,072,776,406
Total:4.9%0149184720No32,210,429,880
Games Above .500
Chance Will Make Playoffs