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EARNINGS PER SHARE CALCULATIONS. | 3 Months Ended
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Mar. 31, 2019
Earnings Per Share [Abstract] |
EARNINGS PER SHARE CALCULATIONS | EARNINGS PER SHARE CALCULATIONS. The following table presents the reconciliation of net income attributable to T. Rowe Price Group to net income allocated to our common stockholders and the weighted-average shares that are used in calculating the basic and diluted earnings per share on our common stock. Weighted-average common shares outstanding assuming dilution reflects the potential dilution, determined using the treasury stock method, that could occur if outstanding stock options were exercised and non-participating stock awards vested.
| Three months ended
(in millions) | 3/31/2019 |  | 3/31/2018
Net income attributable to T. Rowe Price Group | $ | 512.6 |  |  | $ | 453.7 |
Less: net income allocated to outstanding restricted stock and stock unit holders | 13.0 |  |  | 10.6 |
Net income allocated to common stockholders | $ | 499.6 |  |  | $ | 443.1 |
Weighted-average common shares |  |  |
Outstanding | 236.6 |  |  | 244.3 |
Outstanding assuming dilution | 239.6 |  |  | 249.8 |

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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