I am a bit stuck on an inventory report. The database I am working on keeps track of chemicals including the amount of chemicals purchased (Acquisitions), disposed, as well as the initial quantity on hand. Using these three figures I am able to do many things but I can't figure out how to get the inventory on hand at a specific date. I want to be able to get the inventory for an individual chemical or all chemicals at once. I have attached the db for you to look at. I would appreciate any help you can give me.