The Company is required, in periods in which it has net income, to calculate basic earnings per share (“basic EPS”) using the two-class method. The two-class method is required because the Company’s shares of Series N preferred stock, each of which is convertible to 40 common shares, have the right to receive dividends or dividend equivalents should the Company declare dividends on its common stock. Under the two-class method, earnings for the period are allocated on a pro-rata basis to the common and preferred stockholders. The weighted-average number of common and preferred shares outstanding during the period is then used to calculate basic EPS for each class of shares. For 2022 and 2021, the earnings allocated to the preferred shares outstanding were not material.

In periods in which the Company has a net loss, basic loss per share is calculated by dividing the loss attributable to common stockholders by the weighted-average number of common shares outstanding during the period. The two-class method is not used in periods in which the Company has a net loss because the preferred stock does not participate in losses.

Stock options and other potential common shares are included in the calculation of diluted earnings per share (“diluted EPS”), since they are assumed to be exercised or converted, except when their effect would be anti-dilutive.

The table below shows the calculation of the shares used in computing diluted EPS:


	Year Ended December 31,
Weighted Average Shares Calculation:	2022		2021
Basic weighted average shares outstanding		36,016,619		35,458,938
Treasury stock effect of common stock options and restricted stock awards		1,080,651		1,442,452
Diluted weighted average common shares outstanding		37,097,270		36,901,390

For 2022 and 2021 there were potential common shares totaling approximately 0.8 million and 0.3 million, respectively, that were excluded from the computation of diluted EPS as the inclusion of such shares would have been anti-dilutive.