Basic net income (loss) per common share is computed by dividing the net income (loss) available to common stockholders by the weighted-average number of common shares outstanding during the period. Diluted net income (loss) per common share is computed by dividing the net income (loss) available to common stockholders by the weighted-average number of common shares outstanding and potentially dilutive securities outstanding during the period. Potentially dilutive securities include stock options, unvested restricted stock, and unvested restricted stock units outstanding during the period, using the treasury stock method. Potentially dilutive securities are excluded from the computations of diluted earnings per share if their effect would be antidilutive. A net loss from continuing operations causes all potentially dilutive securities to be antidilutive. We have certain undistributed stock awards that participate in dividends on a non-forfeitable basis, however, their impact on earnings per share under the two-class method is negligible.


	Fiscal Year
	2021	2020	2019
Weighted-average common shares outstanding	72.6	65.0	87.5
Dilutive effect of stock options and restricted stock awards	—	—	—
Weighted-average diluted common shares	72.6	65.0	87.5

Anti-dilutive shares:
Restricted stock units	0.9	—	—
Restricted stock	0.4	1.6	1.9
Stock options	—	—	0.2