What information is necessary to calculate the bread formula?

To calculate the bread formula, it is crucial to have the information regarding how much product is being used over a specific period. The relevant metric here is the output of cases per day alongside the duration in days for which that output is to be measured. This allows for accurate planning of inventory and ensures that there is enough bread available to meet customer demand.

Specifically, knowing the output in cases and the number of days helps determine the total requirement for the specified time frame. This is essential for ensuring efficient stock management and fulfilling operational needs without excess waste or shortages.

While other options may provide useful data, they don't effectively combine both the output needs and the time frame to calculate total bread usage accurately. In contrast, combining output cases with days gives the complete picture necessary for optimal inventory control.