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CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions | 12 Months Ended
--- | ---
Jul. 31, 2021 | Aug. 01, 2020 | Aug. 03, 2019
Income Statement [Abstract] |  |  |
Net sales | $ 26,950 | $ 26,559 | $ 22,341
Cost of sales | 23,011 | 22,670 | 19,121
Gross profit | 3,939 | 3,889 | 3,220
Operating expenses | 3,593 | 3,552 | 2,976
Goodwill impairment charges | 0 | 425 | 293
Restructuring, acquisition and integration related expenses | 56 | 87 | 148
(Gain) loss on sale of assets | (4) | 18 | (1)
Operating income (loss) | 294 | (193) | (196)
Net periodic benefit income, excluding service cost | (85) | (39) | (35)
Interest expense, net | 204 | 192 | 181
Other, net | (8) | (4) | (1)
Income (loss) from continuing operations before income taxes | 183 | (342) | (341)
Provision (benefit) for income taxes | 34 | (91) | (59)
Net income (loss) from continuing operations | 149 | (251) | (282)
Income (loss) from discontinued operations, net of tax | 6 | (18) | (3)
Net income (loss) including noncontrolling interests | 155 | (269) | (285)
Less net income attributable to noncontrolling interests | (6) | (5) | 0
Net income (loss) attributable to United Natural Foods, Inc. | $ 149 | $ (274) | $ (285)
Basic earnings (loss) per share: |  |  |
Continuing operations (in dollars per share) | $ 2.55 | $ (4.76) | $ (5.51)
Discontinued operations (in dollars per share) | 0.10 | (0.34) | (0.05)
Basic earnings (loss) per share (in dollars per share) | 2.65 | (5.10) | (5.56)
Diluted earnings (loss) per share: |  |  |
Continuing operations (in dollars per share) | 2.38 | (4.76) | (5.51)
Discontinued operations (in dollars per share) | 0.09 | (0.34) | (0.05)
Diluted earnings (loss) per share (in dollars per share) | $ 2.48 | $ (5.10) | $ (5.56)
Weighted average shares outstanding: |  |  |
Basic (in shares) | 56.1 | 53.8 | 51.2
Diluted (in shares) | 60.0 | 53.8 | 51.2

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