In my organization the salary is made on 30-31 days basis, in gratuity calculation formula the base days is taken as 26. So now if I have to calculate the number of days an employee has worked during an year should be on the basis of his number of days salary made (30-31 format) or on the basis of 26. If I’ve to follow 26 days format then do I’ve to exclude/include holidays also in working days.