You are a college sophomore who fellow classmates in your free time for extra money. With your current? abilities, you can earn ?$2,400 per year for the next three years ? However, suppose you have the option of enhancing your ability to by acquiring special training for ?$6,000. After paying the? fee, the training takes two years to? complete, but at the end of this training? period, you can earn ?$13,700 during the third year. While training in your free? time, you are unable to continue. At what discount rate would you be indifferent between acquiring and not acquiring the? training? You would be indifferent if the discount rate were %