Which actions help keep accurate quantity on hand numbers?

Random out of stock counts play a crucial role in maintaining accurate quantity-on-hand numbers because they involve checking inventory levels against recorded stock on a regular, unplanned basis. This practice helps identify discrepancies, such as theft, wastage, or errors in inventory recordings, that might not be detected during routine inventory assessments. By conducting these random checks, a manager can ensure that the inventory counts accurately reflect the actual stock available, leading to better decision-making regarding reordering and managing customer satisfaction.

The other options do not effectively contribute to maintaining accurate quantity-on-hand numbers. Decreasing items used in recipes or sold as a family meal may lead to changes in inventory that wouldn't necessarily be reflected in accurate counts; rather, they could cause confusion and potentially lead to stock shortages or overages. Thus, these practices would not be an effective means of ensuring accuracy in inventory management.