Final answer:
The exact percentage of the workforce within the arts, entertainment, and recreation sector with no formal education beyond high school isn't provided, but job growth suggests a significant portion of jobs don't require postsecondary education.
Step-by-step explanation:
The specific data regarding the percentage of the workforce within the arts, entertainment, and recreation subsector with no formal education beyond high school is not provided in the reference information you've given.
However, according to the example related to employment trends, jobs that require a high school diploma or equivalent are projected to grow at only 12 percent, while jobs that require less than a high school diploma will grow at 14 percent. This suggests that a significant portion of job growth may occur in areas where formal education beyond high school is not required, which is common in certain industries like arts, entertainment, and recreation.