Original sentence: The amounts in question are minute, around 0.004 micrograms of cocaine in a can of Red Bull Cola, so about 120,000 liters of the cola would need to be consumed for the cocaine to be harmful, according to Bernhard Hoffman, a food scientist for Northrhine-Westfalia who conducted the Red Bull study
Edited sentence: The amounts in question are minute, around 0.4 micrograms of cocaine in a can of Red Bull Cola, so about 120,000 liters of the cola would need to be consumed for the cocaine to be harmful, according to Bernhard Hoffman, a food scientist for Northrhine-Westfalia who conducted the Red Bull study