China has cut GDP growth for 2017. How will it impact the world?

http://www.reuters.com/article/us-china-parliament-idUSKBN16C007

IMF forecasts world GDP to be 3.1% for 2017 and China alone will contribute 39% of that 3.1% whereas USA will only contribute less than 10%.  Therefore, any decline in China GDP will affect the world more than USA.

http://english.gov.cn/news/top_news/2017/01/16/content_281475542971540.htm