Depends on your popularity. If it's a good article, you don't have to spend money. If it is average, it depends on the gold content of your paper. The higher the gold content, the lower the published articles. In other words, it depends on where you want to publish it. If you want to spend a lot of money on science, it may not be possible. If you want to be in a national magazine, you need at least 5 thousand. If it is in a provincial publication, it will cost about 3000. If it is in the industry.