Attendance Calculator

Total Classes

Attended Classes

Minimum Required Percentage (%)

User Manual for Attendance Percentage Calculator

Overview

The Attendance Percentage Calculator is a web-based tool designed to help students and professionals track their attendance, calculate their current percentage, and determine how many classes they can miss or need to attend to meet a customizable minimum attendance requirement. The calculator features a progress bar, a pie chart, and detailed calculation outputs, all wrapped in a user-friendly interface with dark and light theme options.

Version: 1.0 (as of April 9, 2025)
Developer: Sanjay M , Guruganesh K
Copyright: © 2025 edoble. All rights reserved.

Features

Input Fields: Enter Total Classes, Attended Classes, and Minimum Required Percentage (defaults to 75%).
Progress Bar: Displays current percentage, red if below minimum, green if at or above.
Pie Chart: Visual breakdown of attended vs. missed classes.
Output Messages: Actionable insights with detailed calculations.
Theme Toggle: Switch between dark (default) and light themes.

Requirements

A modern web browser (e.g., Chrome, Firefox, Safari, Edge).
Internet connection (for initial load, uses Chart.js).
No additional software required.

How to Use the Calculator

Step 1: Access the Calculator

Open in your browser; it loads in dark theme by default.

Step 2: Enter Your Data

Total Classes: Input total scheduled classes (e.g., 100). Use whole numbers.
Attended Classes: Input classes attended (e.g., 70). Must be ≤ Total.
Minimum Required Percentage: Set desired minimum (e.g., 75). Defaults to 75%, adjust 0-100.

Results update as you type.

Step 3: Interpret the Results

Progress Bar: Shows percentage (e.g., "70.00%"), red if below minimum, green if at/above.
Pie Chart: Green for attended, red for missed (Total - Attended).

Step 4: Switch Themes (Optional)

Click "Toggle Mode" (top-right) to switch between dark and light themes.

Troubleshooting

Issue	Solution
"Please enter valid positive numbers"	Ensure Total and Attended are positive whole numbers.
"Attended classes cannot exceed total"	Check Attended ≤ Total.
"Total classes cannot be zero"	Enter Total > 0.
"Please enter a valid percentage"	Set Minimum between 0 and 100.
Progress bar stuck at 0%	Verify inputs; refresh if needed.
Pie chart not updating	Ensure valid inputs.

Tips

Quick Testing: Try Total: 100, Attended: 80, Min: 75 (bunk) or Total: 100, Attended: 60, Min: 80 (attend).
Theme: Use dark mode for low light, light mode for bright settings.
Real-Time: Experiment with values as results update instantly.