Hello,

The percentage increase depends on the total number of days your classes are being held. For example: if your total number of classes in a year/semester that are being held are 200 and if you attend classes for 2 days then there will be 1% increase in your percentage. Hence, first you need to know or assume the number of classes that will be the held throughout the year and on that basis, you can take out the percentage.

I hope this helps,

Thank you