Heres how the attendance calculator works.?

Input Form:

You enter the student’s name in the text field

You specify the total number of classes (default is 100)

You enter how many classes the student actually attended

Calculation Process:

When you click “Add Record”, the calculator divides the attended classes by total classes and multiplies by 100 to get the attendance percentage It validates inputs to ensure attended classes aren’t more than total classes and all fields are properly filled

Results Display:

Each record is added to a table showing student name, total classes, attended classes, attendance percentage, and status

Status is color-coded: green (Good) for ≥75%, yellow (Warning) for 60-74%, red (Low) for <60%

Data Management:

All records are stored in the browser’s memory during your session

You can delete individual records using the delete button

The “Clear All Records” button removes all entries

The calculator tracks statistics like total students, average attendance, and how many students are at risk

Export Options:

“Print Records” formats the data for printing

“Download CSV” creates a spreadsheet file with all attendance records

Error Handling:

The calculator shows alert messages if you enter invalid data

It prevents common errors like entering more attended classes than total classesThe calculator is designed to work entirely in your browser without needing an internet connection after loading the page. It doesn’t save data permanently – everything is temporary until you export it or close the page.