Gross Profit Margin. Gross profit margin is calculated as net sales less cost of goods sold expressed as a percentage of net sales. Our gross profit margin was 26.7% and 29.9% of sales for the quarters ended September 30, 2022, and 2021, respectively. Gross margins were negatively impacted in the period ended September 30, 2022, principally due to increases in the cost of certain electronic components.
Expenses. Selling, general and administrative expenses were $1,189,243 for the three months ended September 30, 2022, compared to $1,357,103 for the comparable three months in the prior year. As a percentage of net sales, these expenses decreased to 20.3% for the three-month period ended September 30, 2022, from 25.7% for the 2021 period. These expenses decreased as a percentage of net sales principally due to a reduction in salaries expense resulting from recording the employee retention credit of $181,000 under the CARES Act.
Research and development expenses were comparable at $103,245 for the three-month period ended September 30, 2022 to $97,070 for the comparable quarter of the prior year.
Interest Expense. Our interest expense was $68,525 for the quarter ended September 30, 2022, compared to interest expense of $14,309 for the quarter ended September 30, 2021. Interest expense is dependent upon the total amounts borrowed from the Factor and the increase in interest rates during the period as compared to the corresponding period of the prior year.
Net Income. We reported net income of $200,602 for the quarter ended September 30, 2022, compared to a net income of $107,696 for the corresponding quarter of the prior fiscal year, a $92,906 (86.3%) increase in net income. The primary reasons for the increase in the net income is a reduction in salaries expense resulting from recording the employee retention credit under the CARES Act.
Six Months Ended September 30, 2022 and 2021
Sales. Net sales for the six months ended September 30, 2022, were $10,492,445 compared to $9,940,221 for the comparable six months in the prior period, an increase of $552,224 (5.6%). Sales increased principally due to the Company’s ability to fill orders as delays in unloading inventory at California ports of entry began to abate during the period.
Gross Profit Margin. The gross profit margin is calculated as net sales less cost of goods sold expressed as a percentage of net sales. The Company’s gross profit margin was 28.4% for the period ended September 30, 2022, and 28.5% for the period ended September 30, 2021. Gross margins were negatively impacted in the six-month period ended September 30, 2022, principally due to the cost of certain electronic components.
Expenses. Selling, general and administrative expenses were $2,571,846 for the six months ended September 30, 2022, compared to $2,490,242 for the comparable six months in the prior year. As a percentage of sales, these expenses were 24.5% for the six-month period ended September 30, 2022, and 25.1% for the comparable 2021 period. These expenses decreased as a percentage of net sales since selling, general, and administrative expenses do not fluctuate in direct proportion to sales.
Research and development expenses were comparable at $192,507 for the six months ended September 30, 2022, to $198,126 for the comparable period of the prior year.
Interest Expense. Our interest expense was $124,021 for the six months ended September 30, 2022, compared to interest expense of $23,798 for the six months ended September 30, 2021. Interest expense is dependent upon the total amounts borrowed from the Factor and the increase in interest rates during the period as compared to the corresponding period of the prior year.
Net Income. We reported net income of $94,464 for the six months ended September 30, 2022, compared to a net income of $122,337 for the corresponding period of the prior fiscal year, a decrease in the net income of $27,873 (22.8%). The primary reasons for the decrease in the net income is increased costs for certain electronic components caused by supply chain disruptions and higher interest expense, partially offset by the inclusion of approximately $181,000 of Employee Retention Credit under the provisions of the Coronavirus Aid Relief, and Economic Security Act.