6. Profit Before Taxation

The following items have been included in arriving at profit before taxation of continuing operations:

2013
£'000
2012
£'000
Cost of inventories recognised as an expense72,94638,493
Impairment of inventories included in above figure1,191190
Depreciation of property, plant and equipment
— owned assets2,2651,108
— under finance leases11088
Amortisation of intangible assets19,53912,450
Loss on disposal of intangible assets47
Loss/(profit) on disposal of property, plant and equipment472(47)
(Release of impairment)/impairment of receivables(7)86
Operating lease rentals payable2,3411,983
Research and development expenditure as incurred7,9615,735
Auditor's remuneration6761,038
Analysis of total fees paid to the Auditor:
Audit of these financial statements5050
Audit of financial statements of subsidiaries pursuant to legislation217190
Other services pursuant to legislation3029
Other tax advisory services89103
Other services relating to transactions290666
6761,038
Discontinued operations
Audit of financial statements of subsidiaries pursuant to legislation3635
Total fees paid to Auditor7121,073