The Total Cost of Ownership (TCO) Calculator provides an analysis inclusive of both capital expenses (CapEx) and operational expenses (OpEx), offering a detailed comparison between on-premises infrastructure and Azure over an extended period. It factors in long-term financial implications, making it the appropriate tool for preparing the requested report. In contrast, the Pricing Calculator is more suited for planning immediate operational budgets based on current resource usage without accounting for CapEx or long-term financial planning. Azure Cost Management + Billing and Azure Advisor are tools used for ongoing cloud cost monitoring and optimization recommendations, respectively, and are not designed for initial long-term cost analysis.