From the table, it can be seen that

From the table, it can be seen that the net sales interest rate of Maohua Shihua in 2016 is 2.49, the net sales interest rate in 2017 is 2.67, and the net sales interest rate in 2018 is 0.93. From this, it can be seen that the net sales interest rate from 2016 has increased but the range is relatively small, which indicates that the enterprise has good profitability in 2017, but it has plummeted from 2.67 to 0.93 in 2018, indicating that the enterprise is affected by the entire oil industry in 2018, and the overall sales profit is very low, and even the profitability of the enterprise has greatly decreased.