There are variables of where you sell things and what you are selling, the atmosphere around your shop ( street, if it's cold/ hot, if it stinks, what the area looks like, Half of marketing is looks, if the people are conferable in that atmosphere, they are likely to stay longer, and buy more stuff.
I would go to
http://www.payscale.com/research/US/Job=Salesperson_%2F_Salesman_%2F_Saleswoman/Salary
For more information
The average annual salary in 1965 in the United States was around $6,900.
the average doctor salary in Arizona is $66666 based on six salary records
Average Messenger Salary in Guam: $21000
Average salary is 67,470 and the maximum salary is 133,310
Average salary is 67,470 and the maximum salary is 133,310
2p
Not much
The average yearly salary of a librarian in the United States is 32,000 dollars a year.
There is no information on the average salary of a financist. The average salary range for a financier is from $49640 to $74460.
They have an average salary of $75,837
100,000
$5.00