Open. By inquiring about the relevant information of stored-value cards in shopping malls, we know that the deduction point charged by shopping malls should be invoiced, which can be 6%. Invoice refers to the 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.