Amr Mousa
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Data Analytics & BI

Coffee Shop Sales Dashboard

Power BISQLData Cleaning

The Problem

The client faced significant inventory waste and unpredictable staffing needs due to a complete lack of visibility into peak sales hours and top-performing product margins from a dirty, unstructured 10,000-row transaction dataset.

The Solution & Value

Digitized, structured, and cleaned 95% of transaction data using Excel UNIQUE and XLOOKUP. Designed and built a robust Power BI Star Schema model to track hourly sales performance, product profitability, and identify offers' impact.

Sales Funnel Impact

Discovered the Pareto Principle where the top 5 items generated 80% of revenue. Provided actionable combo offer recommendations to bundle high-margin and low-performing items, driving sales optimization and efficiency.

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