Your options for shipping $$$$100$ comma $190$ of machine parts from Hamilton to Kuala$$ Lumpur, Malaysia, are$(1)$ use a ship that will take $30$ days at a cost of $$$$3$ comma $810,$ or$(2)$ truck the parts to Vancouver and then ship at a total cost of $$$$4$ comma $960.$ The second option will take only $18$ days. You are paid via a letter of credit the day the parts arrive. Your holding cost is estimated at $30\%$ of the value per year