On R+S there are three average PM settings in the customized worksheet.

CarPM - Average career prizemoney per start
12mPM - Average prizemoney per start earnt in the last 12 months
API - $1000 of dollars won per start

Unless i'm reading them incorrectly the API one seems to be off the mark on most runners.

Cessnock Race 7
# - API - (Car$)
1 - 1.97 - (1575)
2 - 0.61 - (1656)
3 - 0.39 - (1986)
4 - 1.20 - (1314)
5 - SCR - (1592)
6 - 1.49 - (1217)
7 - 0.98 - (1477)
8 - 1.72 - (1446)
9 - SCR - (1622)
10 - 1.80 - (1259)
11 - 1.30 - (988)
12 - 1.54 - (872)
13 - 0.63 - (1084)
14 - 0.84 - (1134)