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Combined Earnings Per Share | 12 Months Ended
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Dec. 31, 2017
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Combined Earnings Per Share | 7. COMBINED EARNINGS PER SHARE The combined earnings per share calculations are based on the average number of share units representing the combined ordinary shares of NV and PLC in issue during the period, less the average number of shares held as treasury shares. In calculating diluted earnings per share and underlying earnings per share, a number of adjustments are made to the number of shares, principally, the exercise of share options by employees. Underlying earnings per share is calculated as underlying profit attributable to shareholders’ equity divided by the diluted combined average number of share units. In calculating underlying profit attributable to shareholders’ equity, net profit attributable to shareholders’ equity is adjusted to eliminate the post-tax impact of non-underlying items in operating profit and any other significant unusual items within net profit but not operating profit. Earnings per share for total operations for the 12 months were as follows:
|  |  |  |  |  |  |  | € |  |  | € |  |  | € |
|  |  |  |  |  |  |  | 2017 |  |  | 2016 |  |  | 2015 |
Basic earnings per share |  |  |  |  |  |  |  |  |  |  | 2.16 |  |  |  | 1.83 |  |  |  | 1.73 |
Diluted earnings per share |  |  |  |  |  |  |  |  |  |  | 2.15 |  |  |  | 1.82 |  |  |  | 1.72 |
Underlying earnings per share |  |  |  |  |  |  |  |  |  |  | 2.24 |  |  |  | 2.03 |  |  |  | 1.93 |
|  |  |  |  |  |  |  | Millions of share units |
Calculation of average number of share units |  |  |  |  |  |  |  | 2017 |  |  | 2016 |  |  | 2015 |
Average number of shares: NV |  |  |  |  |  |  |  |  |  |  | 1,714.7 |  |  |  | 1,714.7 |  |  |  | 1,714.7 |
PLC |  |  |  |  |  |  |  |  |  |  | 1,310.2 |  |  |  | 1,310.2 |  |  |  | 1,310.2 |
Less treasury shares held by employee share trusts and companies |  |  |  |  |  |  |  |  |  |  | (223.3 | ) |  |  | (184.7 | ) |  |  | (184.8 | )
Combined average number of share units - used for basic earnings per share |  |  |  |  |  |  |  |  |  |  | 2,801.6 |  |  |  | 2,840.2 |  |  |  | 2,840.1 |
Add dilutive effect of share-based compensation plans |  |  |  |  |  |  |  |  |  |  | 12.4 |  |  |  | 13.7 |  |  |  | 15.3 |
Diluted combined average number of share units – used for diluted and underlying earnings per share |  |  |  |  |  |  |  |  |  |  | 2,814.0 |  |  |  | 2,853.9 |  |  |  | 2,855.4 |
Calculation of earnings |  | Notes |  |  |  |  |  | € million 2017 |  |  | € million 2016 |  |  | € million 2015 |
Net profit |  |  |  |  |  |  |  |  |  |  | 6,486 |  |  |  | 5,547 |  |  |  | 5,259 |
Non-controlling interests |  |  |  |  |  |  |  |  |  |  | (433 | ) |  |  | (363 | ) |  |  | (350 | )
Net profit attributable to shareholders’ equity – used for basic and diluted earnings per share |  |  |  |  |  |  |  |  |  |  | 6,053 |  |  |  | 5,184 |  |  |  | 4,909 |
Post tax impact of non-underlying items |  |  | 3 |  |  |  |  |  |  |  | 262 |  |  |  | 601 |  |  |  | 605 |
Underlying profit attributable to shareholders’ equity – used for underlying earnings per share |  |  |  |  |  |  |  |  |  |  | 6,315 |  |  |  | 5,785 |  |  |  | 5,514 |

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