Basic and diluted loss per share for each of the periods presented is calculated as follows: | | | For the Years Ended December 31, | | | | | 2015 | | 2016 | | 2017 | | 2017 | | | | | RMB | | RMB | | RMB | | US$ | | | Numerator: | | | | | | | | | | | | | | | Net loss attributable to ordinary shareholders used in calculating loss per ordinary share – basic and diluted | | | (78,304) | | | (261,867) | | | (284,320) | | | (43,699) | | | Denominator: | | | | | | | | | | | | | | | Weighted average number of ordinary shares outstanding used in calculating loss per share – basic and diluted | | | 134,546,772 | | | 130,631,867 | | | 130,091,977 | | | 130,091,977 | | | Loss per share – basic and diluted | | | (0.58) | | | (2.00) | | | (2.19) | | | (0.34) | |
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