System to calculate Bradford Factor accurately, and not exclude days with other events on the planner

We have to manually check all Bradford Factor scores as People HR will only add in a sickness absence to the Bradford factor score if an employee has not other event on the same day. (i.e. if an employee booked a morning off as sick, was due to work in the afternoon but calls in sick, the system won't add the sickness for this day to the Bradford Factor calculation as the morning was booked as holiday.) Sickness should still be recorded as part of a Bradford factor score, not matter what else an employee books in for the same day. The system is therefore giving inaccurate information, which employee's could consider as a “loophole”. Luckily, we manually check sickness absence, but we should not need to do this as it inefficient and adds extra work to our team. Therefore the system should calculate any sickness absence recorded into the Bradford score, no matter what else happens on that day.