pre_text: Operating profit Notes 1. Before exceptional items, acquisition related costs, acquired intangible asset amortisation and share-based payment amounting to $4.3 million in total (2018 $19.6 million). 2. Adjusted operating profit as a percentage of revenue in the period. Adjusted operating profit increased by $15.8 million or 20.5 per cent to $92.9 million in 2019, compared with $77.1 million in 2018. Adjusted operating margin increased by 2.2 per cent to 18.4 per cent, from 16.2 per cent in 2018. Reported operating profit was up by $31.1 million or 54.1 per cent to $88.6 million (2018 $57.5 million). Total adjusting items were lower in 2019 at $4.3 million, compared to $19.6 million in 2018, mainly due to exceptional items totalling $13.1 million charged last year (see below).
table: $ million 2019 Adjusted operating margin 1, 2 % 2018 Adjusted operating margin 1, 2 %
table: Networks & Security 73.9 23.1 56.4 19.8
table: Lifecycle Service Assurance 18.1 16.3 17.4 15.4
table: Connected Devices 9.5 13.1 10.5 13.3
table: Corporate (8.6) (7.2)
table: Adjusted operating profit1 92.9 18.4 77.1 16.2
table: Exceptional items 0.5 (13.1)
table: Acquisition related costs (0.1) –
table: Acquired intangible asset amortisation (1.2) (3.7)
table: Share-based payment (3.5) (2.8)
table: Reported operating profit 88.6 57.5
question: Analyse this data from a financial earnings document. What was the change in operating profit under Networks & Security?