黑牡丹股份有限公司在2016~2018年的营业收入一直在增长，增长了2

The operating income of Black Peony Co., Ltd. has been increasing from 2016 to 2018, an increase of 2 billion yuan, but the total operating cost has also increased, from 5.4 billion yuan in 2016 to 5.6 billion yuan in 2017, an increase of 2 100 million yuan, resulting in a reduction in operating profit, total profit, and net profit, and the net profit rate continues to decrease.

Black Peony Co., Ltd. in 2016-2018 operating income has been growing, increasing by 2 billion yuan, but the total operating cost also increased, from 5.4 billion yuan in 2016 to 5.6 billion yuan in 2017, an increase of 200 million yuan, resulting in operating profit, total profit, net profit are reduced, net profit yield continued to decline.

The operating revenue of black peony Co., Ltd. has been increasing from 2016 to 2018, with an increase of 2 billion yuan, but the total operating cost has also increased with it, from 5.4 billion yuan in 2016 to 5.6 billion yuan in 2017, with an increase of 200 million yuan, resulting in the decrease of operating profit, total profit and net profit, and the continuous decrease of net profit margin.<br>