A grocery store said that the demand for instant noodles $($Hao Hao noodles, $75$g type$)$ at the store is about $720$ boxes per year, the price of each box of noodles is $100$ thousand VND$.$ The ordering cost is $60$ thousand per order and the holding cost is $15\%$ of the inventory value. Each year, the shop has $360$ working days and delivery time is $3$ days. Using the EOQ model, determine: