The profit of printing industry is seldom more than 20%. If the customer places an order with the printing factory through you, and the payment is tracked by you, it will be fine to mention 5%. If it's only the first time you arrange business and then the printing house talks about business, and you don't participate in daily business contact, 3% will be high; Profit determines commission. Now the profit is very low, the competition is too fierce, and sometimes you can't get it back after you pay.