The Moisture content of grain denotes the quantity of water per unit weight of grain. Shrinkage occurs whenever wet grain is dried. As grain is dried, moisture is removed from the grain by evaporation, which results in a loss of volume (fewer bushels) and a weight loss (fewer pounds) of grain. The following tables can help you determine grain shrinkage from harvest moisture to dry moisture.
Corn Shrink Table
Soybean Shrink Table