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CONSOLIDATED CONDENSED STATEMENTS OF INCOME - USD ($) shares in Millions, $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2015 | Jun. 30, 2014 | Jun. 30, 2015 | Jun. 30, 2014
Revenue: |  |  |  |
Total revenues | $ 4,904.4 | $ 4,370.5 | $ 9,375.5 | $ 8,385.7
Cost of sales: |  |  |  |
Total cost of sales | 4,174.8 | 3,715.7 | 7,957.2 | 7,116.9
Gross profit | 729.6 | 654.8 | 1,418.3 | 1,268.8
Selling, general and administrative expenses | 551.3 | 502.0 | 1,085.8 | 979.2
Depreciation | 19.2 | 17.0 | 37.8 | 33.1
Operating income | 159.1 | 135.8 | 294.7 | 256.5
Floor plan interest expense | (11.0) | (11.6) | (21.1) | (22.7)
Other interest expense | (16.4) | (12.4) | (32.7) | (24.8)
Equity in earnings of affiliates | 12.0 | 10.9 | 18.7 | 16.0
Income from continuing operations before income taxes | 143.7 | 122.7 | 259.6 | 225.0
Income taxes | (47.6) | (41.2) | (86.4) | (75.9)
Income from continuing operations | 96.1 | 81.5 | 173.2 | 149.1
Loss from discontinued operations, net of tax | (0.4) | (7.6) | (1.6) | (7.3)
Net income | 95.7 | 73.9 | 171.6 | 141.8
Less: Income attributable to non-controlling interests | 1.7 | 1.0 | 2.4 | 1.4
Net income attributable to Penske Automotive Group common stockholders | $ 94.0 | $ 72.9 | $ 169.2 | $ 140.4
Basic earnings per share attributable to Penske Automotive Group common stockholders: |  |  |  |
Continuing operations (in dollars per share) | $ 1.05 | $ 0.89 | $ 1.89 | $ 1.63
Discontinued operations (in dollars per share) | 0.00 | (0.08) | (0.02) | (0.08)
Net income attributable to Penske Automotive Group common stockholders (in dollars per share) | $ 1.04 | $ 0.81 | $ 1.88 | $ 1.55
Shares used in determining basic earnings per share (Note 6) (in shares) | 90.2 | 90.4 | 90.2 | 90.4
Diluted earnings per share attributable to Penske Automotive Group common stockholders: |  |  |  |
Continuing operations (in dollars per share) | $ 1.05 | $ 0.89 | $ 1.89 | $ 1.63
Discontinued operations (in dollars per share) | 0.00 | (0.08) | (0.02) | (0.08)
Net income attributable to Penske Automotive Group common stockholders (in dollars per share) | $ 1.04 | $ 0.81 | $ 1.87 | $ 1.55
Shares used in determining diluted earnings per share (Note 6) (in shares) | 90.2 | 90.4 | 90.3 | 90.4
Amounts attributable to Penske Automotive Group common stockholders: |  |  |  |
Income from continuing operations | $ 96.1 | $ 81.5 | $ 173.2 | $ 149.1
Less: Income attributable to non-controlling interests | 1.7 | 1.0 | 2.4 | 1.4
Income from continuing operations, net of tax | 94.4 | 80.5 | 170.8 | 147.7
Loss from discontinued operations, net of tax | (0.4) | (7.6) | (1.6) | (7.3)
Net income attributable to Penske Automotive Group common stockholders | 94.0 | 72.9 | 169.2 | 140.4
Retail Automotive Dealership |  |  |  |
Revenue: |  |  |  |
Total revenues | 4,538.6 | 4,256.5 | 8,713.6 | 8,175.7
Cost of sales: |  |  |  |
Total cost of sales | 3,877.7 | 3,620.3 | 7,424.6 | 6,941.8
Retail Commercial Truck Dealership |  |  |  |
Revenue: |  |  |  |
Total revenues | 241.9 |  | 434.6 |
Cost of sales: |  |  |  |
Total cost of sales | 203.6 |  | 363.5 |
Commercial Vehicle Distribution and Other |  |  |  |
Revenue: |  |  |  |
Total revenues | 123.9 | 114.0 | 227.3 | 210.0
Cost of sales: |  |  |  |
Total cost of sales | $ 93.5 | $ 95.4 | $ 169.1 | $ 175.1

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