ROI is one of the most common financial measuring tools used to make the best decisions about where to invest funds for the maximum return over time. The document provides instructions to calculate the estimated ROI and productivity increase from implementing an ERP system for Phoenix Fine Electronics based on information from Week 1. It asks the reader to incorporate this analysis into a business case presentation for Phoenix Fine Electronics' management team, including an executive summary, needs and goals, project scope, measurable benefits, strategic alignment, and ROI and productivity estimates to support a final recommendation.