throughout the interview emphasise that youre about progression, that you want more responsibilities than you did at your previous job, tell them the hours here are more suitable for me than my last ones were, AND WHEN IT COMES TO SALARY NEGOTIATION its all about continuity. tell them again that it boils down to progression. make up a reasonable figure for how much you were paid in your last role (do your research for how much the industry youre applying to or the role youre applying for pays, base it on that) tell them you expect more than you were previously paid. do not give them a figure. progression is your primary focus, tell them if youre progressing youre happy. leave it at that.