Three Months Ended February 28,

Six Months Ended February 28,

Numerator:

2023

2022

2023

2022

Net income attributable to NTIC

$

885,248

$

182,847

$

1,387,490

$

4,676,606

Denominator:

Basic – weighted shares outstanding

9,366,357

9,214,817

9,353,989

9,211,858

Weighted shares assumed upon exercise of stock options

381,104

468,609

391,177

524,202

Diluted – weighted shares outstanding

9,747,461

9,683,426

9,745,166

9,736,060

Basic net income per share:

$

0.10

$

0.02

$

0.15

$

0.51

Diluted net income per share:

$

0.09

$

0.02

$

0.14

$

0.48