What is the formula for calculating moisture content in manure?

The formula for calculating moisture content in manure is accurately represented by the relationship that defines moisture content as the difference between the wet weight and the dry weight. When assessing manure, the wet weight includes the total mass of the manure including its water content, while the dry weight reflects the mass of the solid material once all moisture has been removed.

Therefore, the moisture content is determined by subtracting the dry weight from the wet weight, which demonstrates how much mass in the wet weight is actually due to moisture. This formula effectively quantifies the amount of water present in the manure, allowing for better management and application of the nutrient content of the manure in agricultural practices.

The other choices do not correctly reflect the standard method used for calculating moisture content. They either involve incorrect mathematical operations or do not align with the correct understanding of how moisture content is determined.