ULTK ltd uses the EOQ inventory management model and and purchases $64000$ units of raw materials per year. The purchase price of the raw materials is R$100$ per unit $.$ The cost holding one units in inventory is R$12$ per year $.$ The cost of reordering and taking delivery is R$1500$ per order regardless of the size of the order $.$ experience has shown that the supplier of the raw material can be unreliable and that the delivery period can range between one week and tree weeks $.$If the company wants to hold enough raw material to ensure that it never runs out $,$ calculate the lowest inventory level at which raw material should be recorded. period to $45$ days. it is expected that on average $60\%$ of customers will take the discount and pay within $30$ days, $30\%$ of customers will pay after $45$ days. and the rest of the customers will not change their payment behavior. OSP inc charge $12\%$ per annum on its overdraft facility. Determine the net benefit $($cost$)$ of the proposed changes in the trade receivable policy