The values in the output window were very small, ranging from 0.17 to around 4.09. This value needed to be multiplied by 100 to produce the desired results. I changed the code to
SetTrailStop("Long1b", CalculationMode.Ticks, ((PriorDayOHLC().PriorHigh[0] - PriorDayOHLC().PriorLow[0]) *100), false);
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