Designed an end-to-end Excel BI system using Power Query, Power Pivot, and DAX to evaluate multi-year profitability. Delivered four dashboards analyzing markets, customers, and fiscal trends for data-driven strategy formulation.

Sales & Customer performance analysis built with Excel BI, Power Query, and DAX. Explores revenue concentration, customer segmentation, product portfolio performance, and operational bottlenecks to reveal hidden business risks and support data driven decision making.