How can I calculate the discount rate and P/E ratio using this table?

Period from the inception date to December 31, 2017 RMB For the year ended December 31, 2018 2018 RMB US$ RMB (in thousands) For the three months ended March 31, 2019 RMB US$ 215 25 10 250 649,609 135,642 55,444 840,695 96,795 20,211 8,261 125,267 9,575 1,403 1,976 12,954 361,095 83,980 33,435 478,510 53,805 12,513 4,982 71,300 (789) (532,217) (79,303) (9,419) (275,812) (41,097) (1,559) (917) (25,464) (576,244) (85,863) (106,690) (15,897) (746,018) (111,160) (20,224) (3,965) (54,412) (282,371) (83,979) (168,103) (42,075) (12,513) (25,048) (22,005) (379,738) (56,583) (39,022) (172,962) (25,772) Selected Consolidated Statements of Comprehensive Loss Data: Net revenues: Freshly brewed drinks Other products Others Total net revenues Operating expenses: Cost of materials Store rental and other operating costs Depreciation expenses Sales and marketing expenses General and administrative expenses Store preopening and other expenses Total operating expenses Operating loss Interest income Interest and financing expenses Foreign exchange (loss) gain, net Other expenses Change in the fair value of warrant liability Net loss before income taxes Income tax expense Net loss Add: accretion to redemption value of convertible redeemable preferred shares Add: deemed distribution to a certain holder of Series B convertible redeemable preferred shares Net loss attributable to our company's ordinary shareholders and angel shareholders (5,723) (97,794) (14,572) (11,085) (22,374) (3,334) (56,457) (2,438,701) (363,378) (138,127) (1,005,601) (149,839) (56,207) (1,598,006) (238,111) (125,173) (527,091) (78,539) 11 8,915 1,328 53 1,551 231 (16,121) (2,402) (7,945) (1,184) (175) 13,113 1,954 (6.409) (8,640) (1,287) (7,777) (1,159) (700) (1,337) (199) (19,276) (2,872) (56,371) (1,619,152) (241,262) (132,229) (8,322) (551,784) (1,240) (82,218) (56,371) (1,619,152) (241,262) (132,229) (551,784) (82,218) (1,571,182) (234,113) (18,845) (2,808) (2,127) (317) (56,371) (3,190,334) (475,375) (132,229) (572,756) (85,343)