Tarek
Nageh

Case Study: Advanced Sales Performance Analysis (QoQ). This Power BI Dashboard was designed for executive decision-making, integrating data from multiple sources to track 9.9M Total Profit from 20M Total Sales, achieving 49.9% profitability.

The data analysis highlighted significant performance variance across regions and a sharp sales drop in 2016 following a 2015 peak. I utilized DAX functions to create dynamic time-intelligence calculations (like Quarter-over-Quarter) and implemented interactive data visualization techniques to allow managers to instantly filter sales trends, identify low-performing states, and strategize for future growth.

Case Study: HR Workforce Analysis and Headcount Planning. This Power BI Dashboard provides a detailed overview of the organization's Human Resources data, covering 689 employees and a total salary of 1.4M.

The data analysis focuses on departmental distribution (Manufacturing is largest), gender ratios (mostly male, 65%), and geographical distribution. I employed advanced filtering and data visualization to highlight the peak headcount period in 2019, enabling HR leaders to better understand employee trends, plan recruitment strategies, and manage compensation effectively.

Case Study: Comprehensive Sales and Profitability Tracking for Retail. This advanced Excel Dashboard offers a dynamic view of sales metrics, profit margins, and detailed geographical/product distribution across various Egyptian branches.

The analysis integrates Sales, Profit, and Detailed Item Metrics across three interconnected dashboards (Sales, Profit, and Details). Key features include tracking high sales ($62.7K), maximum profit ($3.1K), dynamic filters by Branch and Geographic Segment, utilizing Pivot Tables, Power Query, and advanced formulas.

Case Study: Comprehensive analysis of 1,000+ students across 10 countries and 303 courses. This Power BI Dashboard tracks student engagement metrics with 34.6% course completion rate and 49.84% average progress.

The dashboard analyzes 512 passed students with detailed breakdowns by major courses. Category analysis reveals Fiction leads with 231 students, followed by Science Fiction, Mystery, Romance, and Non-fiction. Geographic distribution covers USA, Canada, Brazil, UK, France, Germany, Spain, Italy, India, Japan, and Australia.

Case Study: Comprehensive SQL-based analysis of retail sales data focusing on revenue trends, customer behavior, and product performance using advanced querying techniques.

Developed comprehensive SQL queries to analyze retail sales data, focusing on revenue trends, customer behavior, and product performance. Created complex joins, aggregations, and window functions to derive actionable insights, generating key performance indicators (KPIs) including monthly sales growth and customer retention rates.