I'm fairly new to Access and I'm trying to set up a database to track projects and materials I will be working with. My projects/materials consist of sheets of acrylic cut on a laser cutter. I currently have a table containing all of my materials, material type, cost, size of material in sqIN etc. Then another table containing project information such as customer info,date received and due, size of the material being used in sqIN. I have my two tables set up as well as a basic form based on the project table but am not sure how to link the project to the material being used. I have a dropdown in the project form that pulls the values from the materials table but I am unsure how to use those values to calculate my project price within the form. Any help is greatly appreciated.