<prompt> Human: I work for a relatively small companyabout 20 employees that bought out the previous company I worked for last year. I was already underpaid, at least, that is how I feel when it comes to my skill set. I have already asked them and mentioned a pay raise, but it always seems to get pushed off.Having just learned that a co-worker of mine is leaving and that I will be taking their placehe did the same thing I do, I feel like this is my last try at trying to advance with this company before moving on myself due to inability for growth and feeling a lack of respect.How would you guys go about bringing it up, and at what point would you bring it up? Co-worker will be leaving after next week, so this will be happening pretty quickly.  <response>: Co-workers pay has little to do with whether you deserve a raisepromotion -- for example, if they overpaid him before, why should they overpay you now?. You have to put up a good case, with numbersdata if possible, about your contribution and value to the company. 