What is the R&D expense rate of Changan Automobile 17?

17 years, Changan Automobile's R&D expense ratio was 4.54%. According to the inquiry of official website of Changan Automobile, among the annual income of 80010.20 billion yuan in/7, the income from selling goods was about 799.8 million yuan, accounting for 99.96%. The income of external processing is about RMB 32 million, accounting for 0.04%. In 20 17, R&D investment was about 3,636,543.8 million yuan, accounting for 4.54% of revenue, with a slight increase of 0.46% year-on-year.