Here is the purse structure the PA Sprint Series uses.

Purse
$3855
1 - $275
2 - $250
3 - $225
4 - $200
5 - $180
6 - $165
7 - $160
8 - $155
9 - $150
10 - $150
11 - $145
12 - $145
13 - $145
14 - $145
15 - $145
16 - $145
17 - $130
18 - $135
19 - $135
20 - $135
21 - $135
22 - $135
23 - $135
24 - $135