I have been working for a firm for some time. Now I want to leave. I
have tried to research how much an Excel developer can make in the NYC
area.

The problem is that web pages or newspapers do not mention salary in
their want ads. So it is hard to check and see how much an Excel
Developer can make.

What is the going rate as a salaried person in NYC as an Excel
Developer?

What can you make as a consultant.