If it's a mall, I'll give you the invoice directly, and I won't give you a discount if I don't need the invoice. Tax included.

In some jewelry markets, merchants pay a fixed tax. They want to issue invoices, and they all go to the market to issue them uniformly. At this time, the market will collect 4.6% tax, and the money will be turned over, and no one can stay. Beijing is the standard.