About 4.585 million tonnes of cocoa beans were produced in the 2013–2014 growing year, which runs from October to September. Of this total, African nations produced 3.014 million tonnes (65.75%), Asia and Oceania produced 0.849 million tonnes (18.52%), and the Americas produced 0.721 million tonnes (15.73%). Two African nations, Ivory Coast and Ghana, produce almost half of the worlds cocoa, with 1.448 and 0.835 million tonnes, respectively (31.6% and 18.22%, respectively).
Question: How many more million tonnes of cocoa did African nations produce than American nations?
Answer: 2.293