Three Months Ended

Six Months Ended

Numerators:

February 28,

2014

February 28,

2013

February 28,

2014

February 28,

2013

Net income attributable to NTIC

$

1,025,044

$

434,410

$

1,883,630

$

824,032

Denominator:

Basic – weighted shares outstanding

4,434,837

4,418,821

4,434,770

4,409,954

Weighted shares assumed upon exercise of stock options

144,766

66,255

131,333

50,243

Diluted – weighted shares outstanding

4,579,603

4,485,076

4,566,103

4,460,197

Basic earnings per share:

$

0.23

$

0.10

$

0.42

$

0.19

Diluted earnings per share:

$

0.22

$

0.10

$

0.41

$

0.18