The total operating costs for the interview office network of 68 offices during the period from 1 August 2007 to 31 July 2008 was £24.7 million, which excludes the cost of depreciation of relevant set-up capital expenditure.
There are a number of central costs within the £24.7 million such as call centre appointments and IT maintenance which makes it impossible to give meaningful comprehensive monthly costs for each individual office.
This gives a notional overall unit cost of £114.05 over the period. However, many of the offices were still coming up to full capacity during the period in question and were not fully operational until later in the 2007 calendar year. The unit cost per interview for the network in July 2008 was £76.43.