On the left side of the menu, click on "Market".
Here you can purchase various products from other farmers:
< Hover over the product image and find out its system price: Use the sorting on the right side of the window to list only the product you need.
The system's commission when selling on the market: 5%.
The commission is charged to the seller.
The buyer does not bear hidden losses except for the amount of the cost in the column "Purchase for"