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A teller counts yuan banknotes in a bank in Lianyungang, east China's Jiangsu province on August 11, 2015. China's central bank on August 11 devalued its yuan currency by nearly two percent against the US dollar, as authorities seek to push market reforms and bolster the world's second-largest economy. CHINA OUT AFP PHOTOSTR/AFP/Getty Images
A teller counts yuan banknotes in a bank in Lianyungang, east China's Jiangsu province on August 11, 2015. China's central bank on August 11 devalued its yuan currency by nearly two percent against the US dollar, as authorities seek to push market reforms and bolster the world's second-largest economy. CHINA OUT AFP PHOTOSTR/AFP/Getty Images

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    Why did China devalue its currency?

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Why did China devalue its currency?

World markets reacted strongly to China allowing the value of its currency to slide. CNN's Richard Quest explains why.

Why did China devalue its currency?

World markets reacted strongly to China allowing the value of its currency to slide. CNN's Richard Quest explains why.