Absenteeism Rate

Hi Friends!
Can some one please help me understand absenteeism better by giving answer to below mentioned example and logic behind the answer please?
Out of 10 employees in an organisation 2 are not present for a particular day. Out of these 2 employees, 1 has applied for leave one week back and the leave is sanctioned by supervisor concerned. the second employee has not applied for leave, provided no intimation.
In this case, absenteeism rate for that particular day would be 10 % or 20 %.
Would appreciate answering as below:
Answer:
Justification / Logic:
Regards,
Hiten

absences could be a indicator for employee dissatisfaction with his work role or immediate senior or cos polices etc ie attrition indicator
analyse the leave patterns for various factors

only the second one would be counted towards unsched absences.
did the first one take leave after the roster was released, if no it will be counted