In this Power BI Retail Sales Analysis Case Study, we analyze the Contoso Retail dataset using SQL Server, Power Query, and DAX to build interactive dashboards for Sales, Profit, Margin, and Country-wise performance. This end-to-end Power BI project covers data validation using SQL queries, data modeling, creating measures, and designing advanced visuals like Scatter Charts and Decomposition Trees to identify profit drivers and business insights. Project file https://drive.google.com/file/d/1I0WWUJPE-p_w6TsSljPiD0SC8qSh8UEo/view?usp=sharing Perfect for Data Analysts, Business Intelligence Developers, and anyone preparing for Power BI interviews or portfolio projects.