Note2020
£m
2019
£m
Cash flows from operating activities
Operating profit52.239.0
Non-underlying items76.188.4
Underlying operating profit128.3127.4
Adjustments for:
Depreciation139.95.7
Amortisation24.34.1
Release of government grant(0.5)(0.5)
Profit on disposal of tangible assets7(0.3)
Gain on curtailment of pension scheme23(3.5)
Equity settled share-based payment expense271.52.3
Underlying operating cash flow before changes in working capital143.5135.2
Increase in inventories(15.7)(14.1)
Decrease/(increase) in trade and other receivables6.9(11.7)
Increase in trade and other payables0.16.3
Cash generated from operating activities before interest, taxation and non-underlying items134.8115.7
Cash outflows in respect of non-underlying items(7.3)(7.4)
Cash generated from operating activities before interest and taxation127.5108.3
Interest paid(7.8)(9.2)
Interest on lease liabilities(0.4)
Income taxes paid(12.9)(17.3)
Net cash inflow from operating activities106.481.8
Cash flows from investing activities
Proceeds from disposal of tangible assets0.20.3
Interest received0.3
Acquisition of subsidiaries (net of cash acquired)(25.2)(39.7)
Acquisition of investment in associates(7.6)
Purchase of property, plant and equipment13(7.8)(12.0)
Capitalised development expenditure12(1.3)(1.0)
Purchase of other intangible non-current assets12(40.1)(9.5)
Net cash outflow from investing activities(81.5)(61.9)
Cash flows from financing activities
Proceeds from the issue of share capital131.51.2
New borrowings297.344.1
Expenses of raising borrowing facilities(1.7)(0.2)
Repayment of borrowings(271.7)(36.8)
Principal elements of lease payments(3.2)
Dividends paid10(33.3)(28.4)
Net cash inflow/ (outflow) from financing activities118.9(20.1)
Net increase/ (decrease) in cash and cash equivalents143.8(0.2)
Cash and cash equivalents at start of period1880.379.7
Exchange differences on cash and cash equivalents3.30.8
Cash and cash equivalents at end of period18227.480.3
Reconciliation of net cash flow to movement in net borrowings
Net increase/ (decrease) in cash and cash equivalents143.8(0.2)
New borrowings and lease liabilities(302.8)(44.1)
Repayment of borrowings and lease liabilities275.336.8
Expenses of raising borrowing facilities1.70.2
Acquisition of subsidiary borrowings and lease liabilities(0.1)(2.8)
Changes in accounting policy for leases(12.7)
Exchange differences on cash and cash equivalents3.30.8
Retranslation of foreign borrowings(6.3)(6.2)
Other non-cash changes(2.0)(0.9)
Movement in net borrowings in the period100.2(16.4)
Net borrowings at start of period(227.8)(211.4)
Net borrowings at end of period28(127.6)(227.8)

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