The last thing to do when preparing to discuss your salary requirements is to come up with two figures. One of those figures, Welch says, should be "a bit above the lowest number you'd be comfortable accepting." The other figure should be "the highest number you think the company would be comfortable paying."
For example, if the lowest salary you'd be willing to accept is $55,000, consider making your lower figure $58,000. If, based on your research, you believe the highest salary the company would be willing to offer you is $65,000, make that your second figure.
The range anchored by these two figures is the answer you should give about your salary requirements. "If your salary offer is somewhere in the middle," Welch says, "that's a good start for both parties."
You should never be surprised when you're asked about your salary requirements — it's essential, Welch says, that you be prepared to deliver a carefully crafted answer.
"Don't blurt out what you think you're worth, or what you think they want to hear," says Welch. "Instead, show your diligence and maturity — it's as easy as one, two, three."
Suzy Welch is the co-founder of the Jack Welch Management Institute and a noted business journalist, TV commentator and public speaker. Think you need Suzy to fix your career? Email her at firstname.lastname@example.org.
Beatriz Bajuelos Castillo
Like this story? Subscribe to CNBC Make It on YouTube!
More from Suzy Welch:
What to say when a job interviewer asks, 'Who's your role model?'
The 4 business buzzwords you should stop using immediately
This is the big secret no one ever tells you about quitting your job