I have a report for my surgeries done over tha last 15 years. I get a total number of surgeries and the average per month in the Grand Heading. In the subsummary I get count of surgeries by month and year with sub-totals by year. I have tried to add a calculation to get an average of surgeries done by year and cannot get a formula to work.
Any help would be appreciated.
Any help would be appreciated.