GroupCompany
2017
£m
2016
£m
2017
£m
2016
£m
Profit before tax442.4353.5235.4230.8
Adjustment for investment income (see note 4) and finance expense (see note 5)189.0219.427.727.9
Adjustment for profit on disposal of business (see note 9)(22.1)
Adjustment for share of profits of joint ventures (see note 12)(3.8)(5.0)
Operating profit605.5567.9263.1258.7
Adjustments for:
Depreciation of property, plant and equipment (see note 10)336.2332.5
Amortisation of intangible assets (see note 11)28.731.2
Impairment of property, plant and equipment (see note 10)0.211.4
Impairment of assets classified as available for sale2.7
Loss on disposal of property, plant and equipment (see note 3)3.35.4
Loss on disposal of intangible assets0.5
Amortisation of deferred grants and contributions (see note 21)(6.7)(6.9)
Equity-settled share-based payments charge (see note 2)3.42.3
Other non-cash movements(3.0)(3.8)
Changes in working capital:
Decrease in inventories (see note 14)6.911.2
Decrease/(increase) in trade and other receivables71.1(14.1)2.32.6
Decrease in trade and other payables(0.6)(4.1)
Increase in provisions (see note 20)11.42.6
Pension contributions paid less pension expense charged to operating profit(38.8)(32.8)
Cash generated from operations1,018.1905.5265.4261.3

The group has received property, plant and equipment of £33.5 million (2016: £32.8 million) in exchange for the provision of future goods and services (see notes 21 and A7).