Add task for the demo

Author: Steve Nunez

issue-53.md

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+# ✨ Add Percentage Calculation Utility
+
+## 📄 Description
+We need a utility function to calculate percentages within the PowerBI JavaScript library. This utility will streamline scenarios where percentage calculations are needed, such as:
+- 📊 Rendering percentage-based visualizations.
+- ⏳ Displaying progress indicators.
+- 📈 Calculating relative metrics for data processing.
+
+## 🛠️ Requirements
+- Add a function to calculate percentages based on a `part` and a `total`.
+- Ensure the function:
+  - Returns `0` if the `total` is `0`. 🛑
+  - Handles edge cases gracefully. ✅
+- Place the function in the appropriate utilities or helper file. 📂
+
+## ✅ Acceptance Criteria
+- 🖋️ A fully implemented `calculatePercentage` utility function.
+- 🧪 Comprehensive unit tests validating its functionality written in Jest.
+- 📝 Clear and concise documentation accompanying the function.
+
+## 💡 Rationale
+This utility will:
+- 🧹 Improve code reusability and readability.
+- 🚀 Reduce redundancy in calculating percentages across the codebase.
+- 🛡️ Ensure consistent implementation of percentage logic.
+
+## 🔥 Priority
+**Medium**
+
+## 🔍 Additional Notes
+- Ensure the function adheres to existing code style and patterns within the repository. 🎨
+- Maintain clarity and simplicity to support future enhancements. 📈