This project is a real-life example of using percent of change and graphing. The beauty of this project is that it can be done with computers if available or just paper and pencil. It can be used to teach percent of change, graphing, interpretation of data, finance and business. The project can be used as a blank day (at end of unit) or end of year project. I have used it with 7th grade Advanced Math and 8th graders in Pre-Algebra.