I'm assuming that you are in tech, and specifically a programmer. In negotiations, it's standard procedure to start by asking for something absurd. I would as

I'm assuming that you are in tech, and specifically a programmer. In negotiations, it's standard procedure to start by asking for something absurd. I would ask for what you make now + 30%, or what you think they will pay +30%. Either they will counter-offer something more reasonable, or they will balk and retract the offer. If they retract the offer, you didn't want to work there. If you need a job because you are unemployed or something, well, that's a different situation entirely.