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Reconciliation of operating profit to headline operating profit (Tables) | 6 Months Ended
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Jun. 30, 2019
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Summary of Reconciliation of Operating Profit to Headline Operating Profit |
|  | Six months ended 30 June 2019 |  |  | Six months ended 30 June 2018 |  |  | Year ended 31 December 2018 |
|  | £m |  |  | £m |  |  | £m |
Operating profit |  |  | 673.0 |  |  |  | 841.9 |  |  |  | 1,431.4 |
Amortisation and impairment of acquired intangible assets |  |  | 66.9 |  |  |  | 84.0 |  |  |  | 280.0 |
Goodwill impairment |  |  | — |  |  |  | — |  |  |  | 183.9 |
Gains on disposal of investments and subsidiaries |  |  | (40.6 | ) |  |  | (189.9 | ) |  |  | (235.5 | )
Gains on remeasurement of equity interests arising from a change in scope of ownership |  |  | (0.4 | ) |  |  | (0.1 | ) |  |  | (2.0 | )
Investment write-downs |  |  | — |  |  |  | 1.5 |  |  |  | 2.0 |
Litigation settlement |  |  | (16.8 | ) |  |  | — |  |  |  | — |
Gain on sale of freehold property in New York |  |  | (7.9 | ) |  |  | — |  |  |  | — |
Restructuring and transformation costs |  |  | 55.4 |  |  |  | 45.5 |  |  |  | 302.3 |
Headline operating profit |  |  | 729.6 |  |  |  | 782.9 |  |  |  | 1,962.1 |
Note:
1 | A reconciliation of operating profit to profit before taxation is provided in the unaudited condensed consolidated interim income statement.

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