A company inventories two items. The relevant data are shown in the file P13_65.xlsx. Determine the optimal inventory policy if no shortages are allowed and if the average investment in inventory is...

A company inventories two items. The relevant data are shown in the file P13_65.xlsx. Determine the optimal inventory policy if no shortages are allowed and if the average investment in inventory is not allowed to exceed $700. If this constraint could be relaxed by $1, by how much would the company’s annual costs decrease? (Hint: Use Solver.)