How much is it to copy 100 pages and bind them into a book?

If you make 30,000 copies, and you have to pay for them, it's not worth buying a machine to print-because you may not have such a large print run after buying a machine; You can find a copy shop or a printing factory, and you can negotiate the price from copying or printing to binding (30,000 copies of the same content are suitable for printing with a printer, but not with a copier). Each copy 100 page, 30,000 copies (calculated by 65-70g A4 paper). The production cost of the whole set is about 15 yuan (including binding). Depending on how you negotiate with the producer, there may be room for price reduction.