I worked on cleaning and preparing a real-world café sales dataset to make it ready for accurate analysis and visualization.
The dataset contained raw transactional records including items, prices, quantities, payment methods, and transaction dates.
**Data Cleaning Steps:**
* Checked for duplicates and inconsistent values
* Converted columns to proper data types (numeric & datetime)
* Handled missing values logically (using Quantity × Price = Total)
* Removed incomplete or illogical records
* Standardized text columns for consistency
* Exported the cleaned dataset for future dashboard development
**Tools Used:**
Python | Pandas | Jupyter Notebook
This project improved the dataset’s accuracy and reliability — ensuring clean, structured data that can be confidently used for BI dashboards and data analysis.