Net loss per share is calculated using the weighted average number of shares of common stock outstanding during the applicable period. Basic weighted average common shares outstanding do not include shares of restricted stock that have not yet vested, although such shares are included as outstanding shares in the Company’s Consolidated Balance Sheet. Diluted net earnings per share is computed using the weighted average number of common shares outstanding and if dilutive, potential common shares outstanding during the period. Potential common shares consist of the additional common shares issuable in respect of restricted share awards, stock options and convertible preferred stock, including the Series A-1 Preferred Stock.

The following table presents the computation of basic and diluted net earnings per share:

Potentially dilutive securities were excluded from the calculation of diluted net income per share for years ended December 28, 2019 and December 29, 2018. Securities totalling 337,492 and 422,851, respectively, for each fiscal year, because the effects were anti-dilutive based on the application of the treasury stock method. Series A preferred shares issued and outstanding are excluded from dilutive securities until the conditions for conversion have been satisfied. See Notes 16 and 17.