When calculating Bradford Factor scores we only look at unauthorised timeoff so, employees' timeoff types such as holidays , maternity and so on are not taken into account here. To ensure the correct calculation, you need to utilise the 'Authorised' setting in Timeoff types.  

When calculating the Bradford Factor score, we only include those types that have their 'Authorised' setting set to NO - any which has a setting of YES will be ignored and will not be included in the calculation.