When I'm at social gatherings/parties, people would enquire about my job and, because I'm an app developer, they think I earn substantially more than I do. (Oh, the joy!) They then follow up asking about my job with something along the lines of 

> "So, how much do you earn then?"


What would be a valid response when someone asks this question, as this information isn't something I feel comfortable giving out.

**Note**: I don't care too much about where data protection/professionalism is involved, i.e. a recruiter asking me how much I currently earn for them to gauge how much I would like to earn in another job or when applying for a loan (as a couple of examples). 

<sub> See a related post address [why people are unwilling to share information about their salary?][1] </sub>

  [1]: https://interpersonal.stackexchange.com/q/1960/345