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Loss Per Share (Tables) | 12 Months Ended
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Dec. 31, 2019
Loss Per Share |
Schedule of computation of basic and diluted net loss per share | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | For the year ended December 31,
​ |  | 2017 |  | 2018 |  | 2019 |  | 2019
​ | ​ | RMB | ​ | RMB | ​ | RMB | ​ | US$
Numerator: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Net loss | ​ | (525,115) | ​ | (10,217,125) |  | (6,967,603) |  | (1,000,834)
Deemed distribution to certain holders of convertible preferred shares | ​ | — | ​ | (80,496) |  | — |  | —
Contribution from certain holder of convertible preferred shares | ​ | 26,413 | ​ | — |  | — |  | —
Net loss attributable to ordinary shareholders | ​ | (498,702) | ​ | (10,297,621) |  | (6,967,603) |  | (1,000,834)
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Denominator (in thousands of shares): | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Weighted-average number of ordinary shares outstanding – basic and diluted | ​ | 1,764,799 | ​ | 2,968,320 |  | 4,627,278 |  | 4,627,278
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Loss per share – basic and diluted | ​ | (0.28) | ​ | (3.47) |  | (1.51) |  | (0.22)

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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