Tracking Data (Inventory) for Monthly Reports

[todd_g]

I have set up a database that tracks inventory in my company's warehouse. When an item leaves the warehouse, the field I created to track quantity is reduced accordingly. This is handled via a script that reads input from a barcode scanner.

My question is, how could I go about creating regular reports that show how many of each item has left the warehouse during the past month?

Thanks for all help, suggestions, and guidance!