Note2019
£m
2018
£m
Cash flows from operating activities
Operating profit39.034.1
Non-underlying items88.465.1
Underlying operating profit127.499.2
Adjustments for:
Depreciation135.74.8
Amortisation and impairment24.12.6
Release of government grant(0.5)
Profit on disposal of tangible assets7(0.3)
Gain on curtailment of pension scheme23(3.5)
Equity settled share-based payment expense282.32.4
Underlying operating cash flow before changes in working capital135.2109.0
Increase in inventories(14.1)(22.5)
Increase in trade and other receivables(11.7)(9.5)
Increase in trade and other payables6.38.6
Cash generated from operating activities before interest, taxation and non-underlying items115.785.6
Cash outflows in respect of non-underlying items(7.4)(4.4)
Cash generated from operating activities before interest and taxation108.381.2
Interest paid(9.2)(5.7)
Income taxes paid(17.3)(11.5)
Net cash inflow from operating activities81.864.0
Cash flows from investing activities
Proceeds from disposal of tangible assets0.3
Acquisition of subsidiaries (net of cash acquired)(39.7)(227.3)
Acquisition of non-controlling interests27(1.8)
Purchase of property, plant and equipment13(12.0)(4.9)
Capitalised development expenditure12(1.0)(1.3)
Purchase of other intangible non-current assets12(9.5)(6.4)
Net cash outflow from investing activities(61.9)(241.7)
Cash flows from financing activities
Proceeds from the issue of share capital1.2103.3
New borrowings44.1133.4
Expenses of raising borrowing facilities(0.2)(3.9)
Repayment of borrowings(36.8)(17.2)
Dividends paid10(28.4)(21.8)
Net cash (outflow)/inflow from financing activities(20.1)193.8
Net (decrease)/increase in cash and cash equivalents(0.2)16.1
Cash and cash equivalents at start of period1879.761.2
Exchange differences on cash and cash equivalents0.82.4
Cash and cash equivalents at end of period1880.379.7
 
Reconciliation of net cash flow to movement in net borrowings
Net (decrease)/increase in cash and cash equivalents(0.2)16.1
New borrowings(44.1)(133.4)
Repayment of borrowings36.817.2
Expenses of raising borrowing facilities0.23.9
Acquisition of subsidiary borrowings(2.8)
Exchange differences on cash and cash equivalents0.82.4
Retranslation of foreign borrowings(6.2)3.3
Other non-cash changes(0.9)(0.9)
Movement in net borrowings in the period(16.4)(91.4)
Net borrowings at start of period(211.4)(120.0)
Net borrowings at end of period29(227.8)(211.4)

Cash conversion is defined as cash generated from operating activities before interest and taxation as a percentage of underlying operating profit.