The calculation of paper publishing fee usually depends on many factors, including publishers, periodical types, article length and format, etc. Here are some common calculation methods:

1. Charge by page: This is the most common charging method. Publishers usually set a fixed fee, and the fee per page may be different. For example, if the cost of a page is 100, then the cost of a 20-page article is 2000.

2. Charge by the number of words: Some publishing societies charge according to the number of words in articles, and the cost of each word may be different. For example, the cost of a word is $0.65438 +0, so the page fee of a 2000-word article is $200.

3. Mixed charging: Some publishing societies charge according to the number of pages and words. For example, the first 10 page is charged according to the number of pages, and the part exceeding 10 page is charged according to the number of words.

4. Special fees: In addition to the basic fees, some publishers will charge some special fees, such as color illustration fees and open access fees.

5. Discounts and concessions: Some publishing societies offer some discounts and concessions, such as group subscription discounts and student discounts.

6. Advance payment and installment payment: Some publishers require the author to pay part or all of the publishing fee, while others allow the author to pay by installment.

Generally speaking, the calculation of paper fee is a complicated process, and many factors need to be considered. Before submitting a manuscript, the author should know the charging policy of the publishing house in detail to avoid unnecessary expenses. At the same time, the author can also get a more favorable price through negotiation.