I checked the Indeed Database in order to find actual data on
manager payroll in the US and found interesting differences between
job
titles and in particular locations. Here is a selection of some of
the
data which can be found at http://www.indeed.com/salary?&indpub...92405170386600
(job title and location search):

Average annual (gross) salary for manager payroll in the USA: $64,000

Average salaries for some selected specific job titles:
General Manager: $61,000
Restaurant Manager: $52,000
Senior Project Manager: $100,000
Office Manager: $37,000
Engineering Manager: $97,000
Product Manager: $83,000
Store Manager: $38,000
Nursing Manager: $83,000