The following items have been charged/(credited) to the income statement in arriving at the group's operating profit from continuing operations:

2014
£m
Re-presented*
2013
£m
Other operating costs
Property rates86.281.3
Hired and contracted services87.384.1
Power64.662.1
Materials51.054.9
Charge for bad and doubtful receivables (see note 16)37.135.5
Regulatory fees36.234.3
Movement in other provisions (see note 21)10.94.9
Accommodation costs6.77.6
Loss on disposal of property, plant and equipment6.46.6
Legal and professional expenses5.75.8
Cost of properties disposed3.910.7
Operating leases payable:
Property3.62.9
Plant and equipment0.80.9
Research and development expenses2.41.3
Amortisation of deferred grants and contributions (see note 22)(7.4)(7.1)
Loss on disposal of other intangible assets3.2
Other35.325.1
430.7414.1
Other income
Other income(3.5)(3.1)
(3.5)(3.1)
Depreciation and amortisation expense
Depreciation of property, plant and equipment: owned assets (see note 11)314.4305.9
Amortisation of other intangible assets (see note 13)24.823.3
339.2329.2

* The comparatives have been re-presented to include regulatory fees of £34.3 million as a separate category, rather than within hired and contracted services and other as previously presented.

During the year, the group obtained the following services from its auditor, at the costs detailed below:

2014
£'000
2013
£'000
Audit services
Statutory audit – group and company3938
Statutory audit – subsidiaries216207
Regulatory reporting3030
285275
Audit related services4545
Other non-audit services20384
533404