Future Value At age 20 you invest $2, 900 that earns 11.75 percent each year. At age 30 you invest $2, 900 that earns 14.75 percent per year. In which case would you have more money at age 60? At age 30 invest $2, 900 at 14.75 percent. Both yield the same amount at age 60. At age 20 invest $2, 900 at 11.75 percent. There is not enough information to determine which case earns the most money at age 60