Which type of demand helps to determine how much raw material is needed to produce a final product?

Independent demand pertains to the demand for final products that is not influenced by the demand for other products. This type of demand is typically forecasted based on market conditions and consumer preferences, rather than derived from the production of other items. Therefore, independent demand does not directly inform the quantity of raw materials required for production.

Gross requirements represent the total quantity of materials needed to meet production schedules before considering any available inventory. While they are useful for understanding material needs, they do not directly determine how much raw material is needed specifically for a final product, as they do not account for the relationships among different products and their components.

Time-phased demand planning involves scheduling material requirements over specific time periods to align with production timelines. Although this approach is helpful for managing inventory and production schedules, it does not directly address the calculation of raw material needs based on the production of final products, which is the essence of dependent demand.