Basic earnings (loss) per common share (EPS) and diluted earnings (loss) per share are calculated as follows:



	Quarter Ended
(Amounts in millions, except per-share amounts)	September 28, 2012		September 30, 2011

Net income (loss) attributable to CSC common shareholders	$	130	$	(2,877	)

Common share information:
Weighted average common shares outstanding for basic EPS	155.360		155.045
Dilutive effect of stock options and equity awards	0.394		—
Shares for diluted earnings per share	155.754		155.045

Earnings (loss) per share – basic and diluted:
Basic EPS	$	0.84	$	(18.56	)

Diluted EPS	$	0.83	$	(18.56	)



	Six Months Ended
(Amounts in millions, except per-share amounts)	September 28, 2012		September 30, 2011

Net income (loss) attributable to CSC common shareholders:
From continuing operations	$	170	$	(2,693	)
From discontinued operations	—		(1		)
	$	170	$	(2,694	)
Common share information:
Weighted average common shares outstanding for basic EPS	155.293		154.944
Dilutive effect of stock options and equity awards	0.449		—
Shares for diluted EPS	155.742		154.944

Earnings (loss) per share – basic and diluted:
Basic EPS:
Continuing operations	$	1.09	$	(17.38	)
Discontinued operations	—		(0.01		)
Total	$	1.09	$	(17.39	)

Diluted EPS:
Continuing operations	$	1.09	$	(17.38	)
Discontinued operations	—		(0.01		)
Total	$	1.09	$	(17.39	)