For the period52 weeks to 30 March
2018
£m
52 weeks to
31 March
2017
£m
Operating profit is arrived at after charging/(crediting) the following expenses/(incomes) as categorised by nature:
Operating lease rentals:
– plant and machinery2.82.0
– property rents92.191.7
– rentals receivable under operating leases(3.6)(3.8)
Landlord surrender premiums(2.1)(1.9)
Loss on disposal of property, plant and equipment4.10.2
Amortisation of intangible assets10.910.0
Depreciation and impairment of:
– owned property, plant and equipment23.020.8
– assets held under finance leases1.00.8
Trade receivables impairment0.20.1
Staff costs (see note 4)231.4219.7
Cost of inventories consumed in cost of sales555.9524.7

The total fees payable by the Group to KPMG LLP and their associates during the period was £0.2m (2017: £0.4m), in respect of the services detailed below:

For the period52 weeks to 30 March
2018
£'000
52 weeks to
31 March
2017
£'000
Fees payable for the audit of the Company's accounts3030
Fees payable to KPMG LLP and their associates in respect of:
The audit of the Company's subsidiary undertakings, pursuant to legislation171205
Audit-related assurance services1515
Other assurance services75
All other services75
216400