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Earnings Per Share
 9 Months Ended
Sep. 27, 2014
Earnings Per Share
Earnings (Loss) Per Share
Basic and diluted earnings (loss) per share were calculated as follows:
 
Three months ended    
 
Nine months ended
In millions, except per-share data
September 27,
2014
September 28,
2013
 
September 27,
2014
September 28,
2013
Net income (loss) attributable to Pentair plc
$
(186.0
)
$
172.8

 
$
94.1

$
378.6

Net income from continuing operations attributable to Pentair plc
$
192.5

$
165.0

 
$
477.2

$
348.8

Weighted average ordinary shares outstanding
 
 
 
 
 
Basic
190.2

199.3

 
193.2

202.1

Dilutive impact of stock options and restricted stock units
2.9

3.5

 
3.2

3.5

Diluted
193.1

202.8

 
196.4

205.6

Earnings (loss) per ordinary share attributable to Pentair plc
 
 
 
 
 
Basic
 
 
 
 
 
Continuing operations
$
1.01

$
0.83

 
$
2.47

$
1.73

Discontinued operations
(1.99
)
0.04

 
(1.98
)
0.14

Basic earnings (loss) per ordinary share
$
(0.98
)
$
0.87

 
$
0.49

$
1.87

Diluted
 
 
 
 
 
Continuing operations
$
1.00

$
0.81

 
$
2.43

$
1.70

Discontinued operations
(1.95
)
0.04

 
(1.95
)
0.14

Diluted earnings (loss) per ordinary share
$
(0.95
)
$
0.85

 
$
0.48

$
1.84

Anti-dilutive stock options excluded from the calculation of diluted earnings per share
0.5

0.1

 
0.5

0.9