On December 14, wheat prices increased by 0.98% in both the US and Europe, reaching 2.93% in Chicago and experiencing a decline in December contracts in Paris, Chicago, and London by 0.98%, 2.93%, and 1.25% respectively. Meanwhile, corn prices in Chicago decreased by 2.14%, contrasting with a slight increase in soybean prices. The dollar's performance against the euro and pound played a role in the price fluctuations. The article also explains the measurement conversions for wheat, corn, and soybeans. The prices of these commodities had varied slightly a day earlier, with the dollar's strength influencing the market in different ways.