Final answer:
The exact percentage change in employment for medical and health services managers from 2008 to 2018 is not provided, but with the overall growth in healthcare and services, and higher education leading to better job prospects, it is inferred that there was an increase in employment.
Step-by-step explanation:
The employment of medical and health services managers is expected to experience significant growth between 2008 and 2018. While the provided information does not explicitly mention the exact percentage of change for this particular occupation in that period, it indicates a trend of growing employment in healthcare and services sectors. Moreover, overall job growth is generally higher for those with more education, whether it be a professional degree or a master's degree at around 20 to 22 percent, or a bachelor's degree at 17 percent.
Considering these trends and the increasing demand for healthcare due to an aging population, it's likely that the employment of medical and health services managers would see an increase rather than a decrease. According to the U.S. Bureau of Labor Statistics, the employment of medical and health services managers is expected to increase by 16 percent between 2008 and 2018. This indicates a positive growth trend in the field. It is worth noting that these projections are based on overall growth across all occupations in the healthcare industry.