How do you calculate moisture loss?

Moisture loss can be calculated by determining the weight difference of a material before and after drying. First, weigh the sample to get its initial weight (wet weight). Then, dry the sample completely and weigh it again to get the final weight (dry weight). The moisture loss is the difference between the wet and dry weights, often expressed as a percentage of the initial weight using the formula: ((\text{Wet Weight} - \text{Dry Weight}) / \text{Wet Weight} \times 100%).