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LOSS PER SHARE
12 Months Ended
Dec. 31, 2021
Earnings Per Share [Abstract]  
LOSS PER SHARE LOSS PER SHARE
The Company computes loss per share of common shares and PVS under the two-class method required for multiple classes of common shares and participating securities. The rights, including the liquidation and dividend rights, of the two classes of shares are similar except for the 400:1 conversion ratio between the common shares and PVS shares. Accordingly, the loss per share attributable to common shareholders will be the same for common shares and PVS, on either an individual or combined basis. Basic net loss per common share and proportionate voting share is computed by dividing the allocated net loss and comprehensive loss by the weighted-average number of common shares outstanding and weighted average number of proportionate voting shares outstanding during the period. Diluted loss per common share is computed by dividing the allocated net loss and comprehensive loss by the weighted-average number of common shares together with the number of additional common shares that would have been outstanding if all potentially dilutive common shares had been issued, unless anti-dilutive. Diluted loss per proportionate voting share is computed by dividing the allocated net loss and comprehensive loss by the weighted-average number of proportionate voting shares outstanding during the period.
The following table sets forth the computation of basic and dilutive net loss per share attributable to common shareholders:
Year Ended December 31,
 20212020

Net loss and comprehensive loss$(137,722)$(30,681)
Weighted-average number of common shares - basic140,769,247 88,996,249 
Dilutive effect of stock options and awards— — 
Weighted-average number of proportionate voting shares - basic— 90,040
Weighted-average number of common shares - diluted
140,769,24788,996,249
Weighted-average number of proportionate voting shares - diluted— 90,040
Loss per common share – basic and diluted$(0.98)$(0.25)
Loss per proportionate voting share – basic and diluted$— $(98.17)
As of December 31, 2021 and 2020, potentially dilutive securities include stock options, restricted share units, broker warrants, and common share warrants. When the Company recognizes a net loss and comprehensive loss from continuing operations, all potentially dilutive shares are anti-dilutive and are consequently excluded from the calculation of diluted net loss per share. The potentially dilutive awards outstanding for each year are presented in the table below:

Year Ended December 31,

20212020
Outstanding options3,343,883 3,330,206 
Outstanding restricted share units1,816,851 456,675 
Outstanding common share warrants6,983,140 10,142,872 
Total
12,143,874 13,929,753