Itâ€™s a function of what the market is telling you. If your competition is selling and you are not, ask why. If you've had 12-15 showings and no offers, ask why. If your entire market segment is stagnant, no showings, no offers, no sales, it may not be you or your price but it also depends on your motivation.
Your agent should be doing updated market analysis and keep you informed so you can make the best decision. I've also written several times that before you drop your price; make certain there are not other factors you should address first. Is your home market ready with good curb appeal on the outside and nicely staged on the inside? Are your marketing materials and pictures as good as they should be? Is your home easy to show or do you require appointments, stick around and otherwise try to "help" which really means getting in the way?
Consider all of these issues and if you feel everything else is as good as it can be and your getting showings but no offers, consider your price.