The research problem is represented by the high marketing margins during potatoes marketing, which negatively impacts marketing efficiency. The research aims to determine the relative importance of production costs per acre, estimate marketing margins and net profit for intermediaries in marketing channels, and identify the obstacles to potatoes marketing and propose solutions.

  The primary data were obtained through a questionnaire form collected through a multi-stage random sample of potatoes farmers in Gharbia Governorate, numbering 75 farmers. It was found that the absolute marketing margin for both the wholesaler and the retailer in the first marketing channel amounted to about 5,545 and 5,872 pounds per kilogram, respectively, of the summer season potatoes, representing about 23.65% and 25.04% of the selling price to the consumer.

    It was also evident that the percentage of net profit from the consumer price for the retailer in the first marketing channel increased, reaching about 18.51% compared to the percentage for the retailer, which amounted to about 11.68%.     It was also found that the marketing efficiency of the retailer in the second marketing channel was higher than that of the wholesaler and retailer in the three marketing channels, reaching approximately 75.4%.

Keywords :(potatoes, marketing efficiency, marketing margins, human labor, Marketing intermediaries, Gharbia Governorate).