Three Months Ended

Nine Months Ended

Numerators:

May 31, 2014

May 31, 2013

May 31, 2014

May 31, 2013

Net income attributable to NTIC

$

980,217

$

927,112

$

2,863,847

$

1,751,144

Denominator:

Basic – weighted shares outstanding

4,461,880

4,421,379

4,452,798

4,415,452

Weighted shares assumed upon exercise of stock options

128,464

47,482

130,376

49,322

Diluted – weighted shares outstanding

4,590,344

4,468,861

4,583,174

4,464,774

Basic earnings per share:

$

0.22

$

0.21

$

0.64

$

0.40

Diluted earnings per share:

$

0.21

$

0.21

$

0.63

$

0.39