As can be seen from Figure 3, the operating income profit margin of Suning e-commerce Co., Ltd. has been on the rise from 2014 to 2018. In 2016, it changed from the previous negative value to the positive value, especially after 2016, the growth rate is large. The gross profit margin of operating income continued to decline from 2014 to 2017, and began to pick up in 2018, with little overall change. The profit margin of total revenue showed a downward trend from 2014 to 2016, and began to rise rapidly in 2017. The change trend of the two indicators, net profit margin of sales and profit margin of sales before interest and tax, is roughly the same. From 2014 to 2015, they decreased slightly and began to rise rapidly in 2016. Basically, the above five indicators began to rise substantially in 2017.<br>
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