Three Months Ended February 28,

Six Months Ended February 28,

Numerator:

2022

2021

2022

2021

Net income attributable to NTIC

$

182,847

$

1,312,575

$

4,676,606

$

2,574,974

Denominator:

Basic – weighted shares outstanding

9,214,817

9,104,636

9,211,858

9,104,623

Weighted shares assumed upon exercise of stock options

468,609

763,282

524,202

651,645

Diluted – weighted shares outstanding

9,683,426

9,867,918

9,736,060

9,756,268

Basic net income per share:

$

0.02

$

0.14

$

0.51

$

0.28

Diluted net income per share:

$

0.02

$

0.13

$

0.48

$

0.26