How to get the persons total working days by using IV_START_DATE AND IV_END_DATE

Summary:

Content (please ensure you mask any confidential information):

l_period_start_date = to_date(to_char(IV_START_DATE,'DD/MM/RRRR')||' '||IV_START_TIME,'DD/MM/RRRR HH24:MI:SS')
l_period_end_date = to_date(to_char(IV_END_DATE,'DD/MM/RRRR')||' '||IV_END_TIME,'DD/MM/RRRR HH24:MI:SS')

/*
l_entry_duration = GET_PAY_AVAILABILITY ('ASSIGN',
l_period_start_date,
l_period_end_date,
'Y',
'Y',
'Y',
'Y',
'D')
*/

CALL_FORMULA( 'GET_PAY_AVAILABILITY',

l_period_start_date > 'actual_start_date',

l_period_end_date > 'actual_end_date',

'D' > 'unit_type',