Shareholders' equity and earnings per share (Tables)

6 Months Ended

Jul. 28, 2012

Earnings Per Share, Basic And Diluted

Earnings per share

	13 weeks ended				26 weeks ended
	July 28, 2012		July 30, 2011		July 28, 2012		July 30, 2011
Net income ($million)		70.7		66.3		153.2		141.7
Basic weighted average number of shares in issue (million)		82.6		86.3		84.1		86.1
Dilutive effect of share options (million)		0.4		0.8		0.6		0.8
Diluted weighted average number of shares in issue (million)		83.0		87.1		84.7		86.9
Earnings per share – basic	$	0.86	$	0.77	$	1.82	$	1.64
Earnings per share – diluted	$	0.85	$	0.76	$	1.81	$	1.63