Generally, the price of clothes and jeans in the market varies from 16-25 according to his purchase channels, but if you want to know his purchase price, it is not very helpful to bargain with them.
For example, after you know the price, add 10 yuan and 20 yuan to his cost price, and he won't sell it. Generally, he won't give it to you until he reaches the ideal retail price, because he doesn't expect to earn your low profit on one or two clothes.