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Attendance shortage calculator

Enter your classes so far and the minimum attendance your college needs.

About this tool

Enter how many classes you attended, how many were held, and the minimum attendance your college needs. The tool tells you your current percentage and either how many classes you can still miss or how many you must attend in a row to recover.

How to use it

  1. Enter classes attended and total classes held so far.
  2. Set the required percentage, for example 75.
  3. Read how many classes you can skip or must attend.

Frequently asked questions

Does it assume every future class counts the same?
Yes. Each class adds one to the total, and attending adds one to attended.
Can I use it for labs and theory separately?
Yes, run it once for each with its own numbers.

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