How are these numbers calculated?

Big Games

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

Week of 4/19100.0*Chance in playoffs100.0*Average seed
van Gerwen 5 van Barneveld 7 +3.9
+0.5
Whitlock 1 Smith 7 -0.4
+0.1
Gurney 3 Anderson 7 -0.3
+0.1
Gurney 7 Whitlock 1 -0.2
Cross 6 Wright 6 -0.1
-0.0
If winner is:HomeDrawAway
Week of 4/26100.0*Chance in playoffs100.0*Average seed
van Barneveld vs Cross+5.5-3.0-4.1
+0.5-0.0-0.5
Whitlock vs Anderson+1.3-0.5-1.0
-0.1+0.0+0.1
Wright vs Smith+0.9-0.2-0.8
-0.1+0.0+0.1
Smith vs van Gerwen-0.8-0.3+0.9
Gurney vs van Gerwen-0.8+0.0+0.7
-0.1-0.0+0.2

What If

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

100100100100100100100100100100
If finish:Chance inChance will finish regular season at seed
TPW-D-Lplayoffs12345678910EliminatedCount
183-0-049.1%11137465No292,337,559
172-1-09.400959320No436,560,275
162-0-10.1034597No873,753,683
1-2-00.0033607No218,157,435
151-1-1Out960301No873,167,461
0-3-0Out860311No36,338,869
141-0-2Out1325611No873,695,729
0-2-1Out1315711No218,155,138
130-1-2Out085536No436,604,570
120-0-3Out13168No292,371,641
Total:4.1%01319382811No4,551,142,360
Games Above .500
Chance Will Make Playoffs