Note	2020			2019
		Underlying £m	Non- underlying* (note 4 & note 5) £m	Total £m	Underlying £m	Non- underlying* (note 4 & note 5) £m	Total £m
Revenue	2	515.1	–	515.1	481.8	–	481.8
Cost of sales		(223.5)	–	(223.5)	(203.6)	(5.1)	(208.7)
Gross profit		291.6	–	291.6	278.2	(5.1)	273.1
Selling, general and administrative expenses		(134.9)	(70.4)	(205.3)	(125.7)	(76.5)	(202.2)
Research and development expenses		(28.4)	(5.7)	(34.1)	(25.1)	(6.8)	(31.9)
Operating profit	2	128.3	(76.1)	52.2	127.4	(88.4)	39.0
Finance income	3	3.0	–	3.0	0.7	–	0.7
Finance expense	4	(11.5)	(2.5)	(14.0)	(10.5)	(1.0)	(11.5)
Share of profit/(loss) of investments accounted for using the equity method	6	0.3	(0.6)	(0.3)	(0.2)	(0.2)	(0.4)
Profit before taxation	7	120.1	(79.2)	40.9	117.4	(89.6)	27.8
Income taxes	9	(24.7)	17.7	(7.0)	(24.9)	28.0	3.1
Profit for the year		95.4	(61.5)	33.9	92.5	(61.6)	30.9
Earnings per share
Basic	11			32.87p			30.15p
Diluted	11			32.76p			30.07p
Dividend per share (interim paid and final proposed for the year)	10			34.29p			31.60p

* The Group presents a number of non-GAAP Alternative Performance Measures (APMs). This allows investors to understand better the underlying performance of the Group, by excluding non-underlying items as set out in note 5.