They have more than 3200 employees an made 130. 000.000.-€ in 2013 (volume of sales).
DJI makes 40.625.- volume of sales pro 1 employee. -> 130.000.000.-€ / 3200 employees
150.000 ROAMes sold in 1 year
150.000 * 400.- US$ = 60.000.000 US$ / 1.500 employees = 40.000 volume of sales pro 1 employee
Do you realy think, AEE is able to produce 50.000 drones a week with just 1.500 employees.
Calculate yourself: 45 weeks * 50.000 ROAMes = .... * 399.- US$= ........ / 1500 employes = ....... US$ pro 1 AEE-employee