It allows you to quickly find the number and percentage of students present and absent.

How to enter data into the calculator?
The calculator offers three options:

In the first Number of students in class field, enter the total number of students.
In the second Number of Students Present field, enter the number of students present in the class.
In the third Class Name field, enter a class name (optional), then press the Calculate button. The full report will appear on the screen.