3. Operating profit

For the period52 weeks to
29 March 2013
£m
52 weeks to
30 March 2012
£m
Operating profit is arrived at after charging/(crediting) the following expenses/(incomes) as categorised by nature:
Operating lease rentals:
— plant and machinery1.71.9
— property rents91.090.1
— rentals receivable under operating leases(5.5)(6.4)
Landlord surrender payments(0.9)(2.0)
Loss on disposal of property, plant and equipment1.71.2
Amortisation of intangible assets5.44.9
Depreciation of:
— owned property, plant and equipment19.420.6
— assets held under finance leases0.50.5
Impairment of property, plant and equipment0.8
Trade receivables impairment0.20.1
Staff costs (see note 4)166.8155.8
Cost of inventories consumed in cost of sales384.1384.7

The total fees payable by the Group to KPMG Audit Plc and their associates during the period was £0.3m (2012: £0.3m), in respect of the services detailed below:

For the period52 weeks to
29 March 2013
£000
52 weeks to
30 March 2012
£000
Fees payable for the audit of the Company's accounts3030
Fees payable to KPMG Audit Plc and their associates for other services:
The audit of the Company's subsidiary undertakings, pursuant to legislation205194
Other services supplied pursuant to such legislation1515
Internal audit services2176
All other services12
271327

Included within "fees payable to the Company's Auditors for the audit of the Company's subsidiary undertakings, pursuant to legislation" are amounts payable to KPMG Audit Plc and its associates incurred in respect of the audit work undertaken on financial controls. This work may include an element, which goes beyond that strictly required by relevant Auditing Standards. The amount is estimated not to exceed £0.1m (2012: £0.1m).