A lot of professionals struggle with how much salary they should ask. Calculating how much salary you deserve is simple business, based on demand and supply.
Step 1: Start by evaluating the market first, what is the average salary for the skills and position you have as well as the lower bound and upper bound. With consideration to your geographical area, different cities and places has huge difference in average salary for a particular role & designation.
Step 2: Have a clear assessment of your skill, experience and knowledge to analyze the valuation of your time and effort in terms of money.
Step 3: A job is a business deal, and for any successful deal both the parties should come out as beneficiaries of the deal.