What is the ruling on increasing the price of a product beyond the price set by the company, with the knowledge and consent of the employer and the company, and keeping a portion of the profit as commission and salary?

I have summarized the answer to this question into three issues:

First Issue: It is permissible for the employer to appoint someone to sell and manage the trade at their discretion, and the agent acts according to this agency.

Second Issue: If the company owns the product and the employer is merely a distributor, both must adhere to the prices set by the company for selling its products.

Third Issue: The wage must be known in an agency for a fee, and the agent is entitled to the wage if they perform the work they were commissioned for. The wage is only known by specifying a certain amount or a known percentage of the price. If the wage is unknown, the agency must be annulled, and the agent is entitled to a fair wage (اجرة المثل), because commissioning for an unknown amount is invalid.

Therefore, the questioner must agree with the employer on a known wage, whether it is a fixed amount, a salary, or a known portion of the prices of goods after their estimation.