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Earnings per share | 3 Months Ended
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Mar. 31, 2021
Earnings per share |
Earnings per share | 4. Earnings per share Earnings per share (“EPS”) is computed on a basic and diluted basis. Basic EPS is computed by dividing net income (less preferred stock dividends) available to common stockholders by the weighted average number of common shares outstanding during the period. The computation of diluted EPS assumes the issuance of common shares for all potential common shares outstanding during the reporting period and, if dilutive, the effect of stock options as computed under the treasury stock method. The following summarizes information related to the computation of basic and diluted EPS: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | Three Months Ended March 31,
​ |  | 2021 |  | 2020
Net income from continuing operations attributable to Consolidated Water Co. Ltd. stockholders | ​ | $ | 1,301,566 | ​ | $ | 3,204,972
Less: preferred stock dividends | ​ |  | (2,559) | ​ |  | (2,869)
Net income from continuing operations available to common shares in the determination of basic earnings per common share | ​ |  | 1,299,007 | ​ |  | 3,202,103
Total loss from discontinued operations | ​ |  | (312,794) | ​ |  | (316,365)
Net income available to common shares in the determination of basic earnings per common share | ​ | $ | 986,213 | ​ | $ | 2,885,738
​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted average number of common shares in the determination of basic earnings per common share attributable to Consolidated Water Co. Ltd. common stockholders | ​ |  | 15,201,458 | ​ |  | 15,114,506
Plus: | ​ |  | ​ | ​ |  | ​
Weighted average number of preferred shares outstanding during the period | ​ |  | 30,469 | ​ |  | 33,751
Potential dilutive effect of unexercised options and unvested stock grants | ​ |  | 124,915 | ​ |  | 120,627
Weighted average number of shares used for determining diluted earnings per common share attributable to Consolidated Water Co. Ltd. common stockholders | ​ |  | 15,356,842 | ​ |  | 15,268,884
​

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