Three Months Ended May 31,

Nine Months Ended May 31,

Numerator:

2022

2021

2022

2021

Net income attributable to NTIC

$

1,000,167

$

2,053,916

$

5,676,773

$

4,628,890

Denominator:

Basic – weighted shares outstanding

9,227,912

9,109,861

9,216,216

9,107,243

Weighted shares assumed upon exercise of stock options

350,886

862,139

466,430

721,809

Diluted – weighted shares outstanding

9,578,797

9,972,000

9,682,646

9,829,052

Basic net income per share:

$

0.11

$

0.23

$

0.62

$

0.51

Diluted net income per share:

$

0.11

$

0.21

$

0.59

$

0.47