(1) Return on net assets: As can be

(1) Return on net assets: As can be seen from the data, from 2014 to 2018, the company's return on net assets showed a gradual downward trend. In 2017, it even broke the freezing point and fell to 15.27%, with a slight rebound in 2018.(2) Return on equity: According to the data, from 2014 to 2018, the company's return on equity has increased year by year and reached its highest value in 2018. It can be seen from the reason that the increase in return on equity is due to the increase in SAIC Group's profits.(3) Return on total assets: As can be seen from the data, from 2014 to 2018, the return on total assets of SAIC Group has declined, so its profitability can also be said to continue to decline.In summary, it can be concluded that although SAIC Group's operating sales have been increasing in recent years, the company's profit has declined due to the increase in costs. However, due to its excellent performance in the stock market, its return on equity has increased significantly.