An end-to-end project demonstrating data cleaning, analysis, and interactive dashboard creation in Microsoft Excel to uncover sales insights.
This project transforms a raw, messy dataset of bike sales into a powerful business intelligence tool. The core objective was to perform a full data analysis cycle:
- Clean and Preprocess raw data to ensure accuracy.
- Analyze the cleaned data using Pivot Tables to identify trends.
- Visualize findings through an interactive and user-friendly dashboard.
- ✅ KPI Cards: Main metrics like Total Sales, Profit, and Quantity Sold are prominently displayed.
- ✅ Regional Performance: Bar charts to compare sales and profit across different regions.
- ✅ Product-wise Analysis: Breakdown of sales by product category.
- ✅ Monthly Sales Trends: A line chart to track performance over time and identify seasonality.
- ✅ Dynamic Slicers: Interactive filters for Region, Gender, and Age Group that update the entire dashboard in real-time.
- Microsoft Excel
- Formulas
- Conditional Formatting
- Pivot Tables & Pivot Charts
- Slicers & Timelines
- Dashboard Design
- Data Cleaning: Removed duplicates, handled blank cells, and corrected data type inconsistencies.
- Data Transformation: Standardized text entries (e.g., 'F' to 'Female') and created new columns for analysis (e.g., Age Brackets).
- Aggregation: Used Pivot Tables as the engine to summarize vast amounts of data into meaningful metrics.
- Visualization: Built Pivot Charts from the aggregated data and assembled them into a cohesive dashboard layout.
- Interactivity: Connected all charts and tables with Slicers to enable drill-down analysis.
- Finding: Customers with higher average incomes are more likely to purchase a bike.
- Insight: Males who purchase bikes represent the segment with the highest average income, indicating strong purchasing power.
- Finding: The overwhelming majority of purchases are from customers with a commute of 0-1 miles.
- Insight: This suggests bikes are primarily used for short-distance travel or recreation, not long commutes. This is a key insight for marketing messaging.
- Finding: The middle-aged group (31-54) dominates bike sales.
- Insight: Marketing and product development should be heavily focused on this age bracket, as adolescents and seniors show significantly lower purchase rates.
- Download the
Bike Sales Project.xlsxfile from the link below. - Open the file in Microsoft Excel (2016 or later recommended).
- Navigate to the 'Dashboard' sheet.
- Interact with the Slicers on the right to filter the data and explore insights!
➡️ Download the full Excel File Here
Have feedback or want to connect? Feel free to reach out!
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Check out my other projects! ➜ My GitHub Profile
