Here you can get a count of the number of invoices for each month in the found set and using the Total option, you can get the total sales amount. A statistical element that shows how much a field value deviates from one record to another. A good example of how Standard Deviation might be used is if comparing test scores for different schools, the standard deviation will tell you how diverse the test scores are for each school. If you're new to FileMaker Pro and have wondered if FileMaker can tell you the same things your colleague keeps bragging about in his powerful spreadsheet, then be rest assured that it can. Understanding the summary fields and how they can work for your reports is the key to flexing FileMaker's muscles.
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