"Chroma sells 600 units of iPhones per month. The unit cost of each iPhone is Rs.75000 and the cost of placing an order is Rs.100. Chroma uses an inventory carrying charge of 10% per year. Determine the optimal order quantity, order frequency, and the annual cost of inventory management. If, through automation of the purchasing process, the ordering cost can be cut to Rs.60, what will be the new economic order quantity, order frequency, and annual inventory management cost? Explain these results.