Crystal Report-Financial Ratios Chart/Graph

Good day all,
I was not sure where to post this topic, so thought here.
I have finanial ratios developed and have passed them to a subreport.
I need to graph the ratio such as Total Margin now on a graph. In all of the google and reseach so far, the only way to do this in crystal is to send it to a subreport. I "see" the shared variable now in the subreport, but can not get it to graph. I get an error message "A print time formula that modifies variables is used in a chart or map detail". In the crystal reports charting on print-time formulas the document makes no sense to me after reading and re-reading it.

Has anyone here attempted to do this and would be able to offer suggestions or assistance as I have hit a road block and the brain is not ramping my head around the concept.

Thanks
Brian
:w00t: