The training fee is quoted according to the name of the project, but the invoice should still be issued according to the actual amount, because it involves paying taxes. If you overcharge, you should pay more taxes, and you can't open it indiscriminately.
Invoices generally refer to issuing invoices, and their invoices refer to business vouchers issued and collected by all units and individuals in buying and selling goods, providing or receiving services and engaging in other business activities. It is the original basis of accounting, and it is also an important basis for law enforcement inspection by audit institutions and tax authorities. The tax authorities are the competent authorities of invoices, and manage and supervise the printing, purchase, issuance, purchase, storage and cancellation of invoices.