Taobao's 180 is almost the wholesale price given by the dealer, and it is indeed a genuine price. However, the merchants on Taobao may not have the corresponding documents and the purchase channels are unknown, so it is still possible to buy fakes.
As I said just now, 180 is the wholesale price, excluding the tax paid on invoices. Of course, the 240 of the shopping mall includes the salary of the sales staff, the cost of the counter, the rent of the store, the publicity and other costs, and the 240 is the price (invoice) including tax.