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CONDENSED CONSOLIDATED STATEMENT OF INCOME (UNAUDITED) - USD ($) shares in Thousands, $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2021 | Mar. 25, 2020
TOTAL REVENUE | $ 155,282 | $ 143,170
Shack-level operating expenses: |  |
Food and paper costs | 44,630 | 39,564
Labor and related expenses | 46,382 | 41,766
Other operating expenses | 23,144 | 17,779
Occupancy and related expenses | 13,911 | 12,558
General and administrative expenses | 19,565 | 16,191
Depreciation and amortization expense | 13,726 | 11,768
Pre-opening costs | 3,576 | 2,243
Impairment and loss on disposal of assets | 369 | 2,088
TOTAL EXPENSES | 165,303 | 143,957
OPERATING LOSS | (10,021) | (787)
Other income (expense), net | 31 | (93)
Interest expense | (515) | (112)
LOSS BEFORE INCOME TAXES | (10,505) | (992)
Income tax expense (benefit) | (11,080) | 87
NET INCOME (LOSS) | 575 | (1,079)
Reallocation of net loss attributable to non-controlling interests from the assumed conversion of Class B shares | (734) | (119)
NET INCOME (LOSS) ATTRIBUTABLE TO SHAKE SHACK INC. | $ 1,309 | $ (960)
Earnings (loss) per share of Class A common stock: |  |
Basic (in dollars per share) | $ 0.03 | $ (0.03)
Diluted (in dollars per share) | $ 0.01 | $ (0.03)
Weighted-average shares of Class A common stock outstanding: |  |
Basic (in shares) | 38,948 | 34,444
Diluted (in shares) | 42,789 | 34,444
Shack sales |  |
TOTAL REVENUE | $ 150,668 | $ 138,048
Licensing revenue |  |
TOTAL REVENUE | $ 4,614 | $ 5,122

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