AVERAGE PRODUCT AND MARGINAL PRODUCT: 1  If the marginal is less than the average, then the average declines. 2  If the marginal is greater than the average, then the average rises. 3  If the marginal is equal to the average, then the average does not change. If the productivity of the marginal worker is equal to the average productivity of the existing workers, then the average does not change. 2  Marginal Less Than Average: Once the marginal product curve moves below the average product curve, then the average product curve declines.
Marine Engineer or Naval Architect Salary. (United States). Median pay for Marine Engineer or Naval Architects in the United States is around $84K annually. In the world of Marine Engineer or Naval Architects, total cash compensation can vary between $55K and $147K.arine Engineer or Naval Architect Salary. (United States). Median pay for Marine Engineer or Naval Architects in the United States is around $84K annually. In the world of Marine Engineer or Naval Architects, total cash compensation can vary between $55K and $147K.
Browse United States Marine Corps Salaries by Job Title â. United States Marine Corps employees earn $41,000 annually on average, or $20 per hour, which is 39% lower than the national salary average of $61,000 per year. According to our data, the highest paying job at United States Marine Corps is a Senior Analyst at $118,000 annually while the lowest paying job at United States Marine Corps is an Aviation Maintenance Administration Specialist at $16,000 annually.