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CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) shares in Millions, $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jul. 01, 2018 | Jun. 25, 2017 | Jul. 01, 2018 | Jun. 25, 2017
Total revenues | $ 151.2 | $ 147.9 | $ 294.2 | $ 279.9
Total costs | 111.9 | 110.4 | 214.1 | 206.3
Gross profit | 39.3 | 37.5 | 80.1 | 73.6
Selling, general and administrative expenses | 30.1 | 31.9 | 59.9 | 61.9
Research and development expenses | 3.6 | 4.1 | 7.2 | 8.5
Restructuring expenses and other | 3.0 | 0.0 | 3.4 | 0.3
Operating income from continuing operations | 2.6 | 1.5 | 9.6 | 2.9
Other income (expense): |  |  |  |
Interest expense, net | (5.7) | (7.2) | (10.8) | (15.4)
Loss on extinguishment of debt | 0.0 | 0.0 | 0.0 | (2.1)
Other income (expense), net | (0.6) | 0.1 | (0.3) | 0.3
Total other expense, net | (6.3) | (7.1) | (11.1) | (17.2)
Loss from continuing operations before income taxes | (3.7) | (5.6) | (1.5) | (14.3)
Provision for income taxes from continuing operations | 0.1 | 1.3 | 1.0 | 2.7
Loss from continuing operations | (3.8) | (6.9) | (2.5) | (17.0)
Discontinued operations |  |  |  |
Income (loss) from operations of discontinued components | (5.7) | 1.3 | (9.6) | 1.6
Income tax benefit (expense) | 1.8 | (0.6) | 2.2 | (0.8)
Income (loss) from discontinued operations | (3.9) | 0.7 | (7.4) | 0.8
Net loss | $ (7.7) | $ (6.2) | $ (9.9) | $ (16.2)
Basic and diluted loss per common share: |  |  |  |
Loss from continuing operations (in dollars per share) | $ (0.04) | $ (0.08) | $ (0.02) | $ (0.21)
Income from discontinued operations (in dollars per share) | (0.03) | 0.01 | (0.08) | 0.01
Net loss per common share (in dollars per share) | $ (0.07) | $ (0.07) | $ (0.10) | $ (0.20)
Weighted average common shares outstanding: |  |  |  |
Basic and diluted weighted average common shares outstanding (in shares) | 103.7 | 86.6 | 103.7 | 82.0
Comprehensive Loss |  |  |  |
Net loss | $ (7.7) | $ (6.2) | $ (9.9) | $ (16.2)
Change in cumulative translation adjustment | 0.1 | 0.0 | 0.0 | 0.1
Comprehensive loss | (7.6) | (6.2) | (9.9) | (16.1)
Service |  |  |  |
Total revenues | 47.0 | 53.8 | 93.0 | 103.0
Total costs | 33.2 | 39.1 | 66.1 | 74.1
Product |  |  |  |
Total revenues | 104.2 | 94.1 | 201.2 | 176.9
Total costs | $ 78.7 | $ 71.3 | $ 148.0 | $ 132.2

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