Hello. Is there a way to extract data from a sub report and use it in a formula in the main report? My main report performs a calculation for a head count and then the sub report performs another calculation for a head count. I want to subtract the two results and show them at the bottom of the main report. The 2 reports come from 2 different MySQL tables that have the same field name, 'SPECIES.' I need to group by this field name and am unable to link the two tables-when I do, I get incorrect numbers for my calculation. I thought that a subreport might get the desired result but I'm not sure how to do this. Any help very much appreciated.