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Earnings (Loss) Per Share
 12 Months Ended
Dec. 27, 2020
Earnings Per Share [Abstract]  
Earnings (Loss) Per Share

(4) Earnings (Loss) Per Share

Basic earnings (loss) per common share attributable to common stockholders are calculated using the weighted average number of common shares outstanding for the period. Diluted earnings (loss) per common share attributable to common stockholders is computed by dividing the income allocated to common stockholders by the weighted average number of fully diluted common shares outstanding. In periods of a net loss, no potential common shares are included in diluted shares outstanding as the effect is anti-dilutive. For fiscal years 2020, 2019 and 2018, the Company had a loss per share, therefore, shares were excluded for potential stock option exercises.

 

The following table summarizes the earnings (loss) per share calculation (in thousands):

 

 

 

Fiscal Year

 

 

 

2020

 

 

2019

 

 

2018

 

Net loss attributable to Potbelly Corporation

 

$

(65,391

)

 

$

(23,992

)

 

$

(8,878

)

Weighted average common shares outstanding-basic

 

 

23,899

 

 

 

23,850

 

 

 

25,173

 

Plus: Effect of potential stock options exercise

 

 

—

 

 

 

—

 

 

 

—

 

Weighted average common shares outstanding-diluted

 

 

23,899

 

 

 

23,850

 

 

 

25,173

 

Loss per share available to common stockholders-

basic

 

$

(2.74

)

 

$

(1.01

)

 

$

(0.35

)

Loss per share available to common stockholders-

diluted

 

$

(2.74

)

 

$

(1.01

)

 

$

(0.35

)

Potentially dilutive shares that are considered anti-dilutive:

 

 

 

 

 

 

 

 

 

 

 

 

Shares

 

 

2,754

 

 

 

2,334

 

 

 

2,499