Business Analytics Interview Project

I need a project submission for my office interview for a business analytics role. The project should focus on sales data analysis using SQL, MS Excel, and Power BI dashboards.

Requirements:
- Analyze sales data from provided CSV files
- Create a Power BI dashboard to visualize key insights
- Use SQL for data extraction and manipulation
- Utilize MS Excel for data analysis and calculations

Ideal Skills and Experience:
- Proficiency in SQL, MS Excel, and Power BI
- Strong analytical skills, especially in sales data
- Previous experience in business analytics projects
- Ability to create detailed and clear project proposals

Please include a detailed project proposal in your application.