Getting the correct totals

I am trying to create a report and get a specific total, but it is not working correctly. I have a group of workers and I am able to count how many Work Orders they have worked on in a given month, however when I try to get a total of how many they completed, I run into a problem because it is counting every date that they worked as 1 instead of counting the # of work orders. Someone mentioned using a Global variable, but I am unsure how to use this.Try a running total, or if your count is in your details area, you should be able to right click it and insert a summary (group level if desired and report level)