Jim is a sale manager. His job is to make project to sale their product. In the last days, he is busy a project in a way to set sales target either for a sales person or the company to make comparison against the revenue. He wants to build a custom report and do the tracking in the supermarket. Every custom would do it after finishing their shopping, and it will take less time. Maybe one week, it will be summaried. And in the end of the month, gather all the record to comparison. He thinks the way can get the truth to help improve his project.