A stock has to supply 400 units of product every Monday to his customers. he gets the product at kshs 50 per unit from the manufacturer . The cost of ordering and transportation from the manufacturer is Kshs 75 per order . The cost of carrying inventory is 7.5% per year of the cost of the product . Find 1.The economic lot size 2.The total optimal cost (including the capital cost) 3.The total weekly profit if the item is sold for Kshs 55 per unit .