700,000 yuan. According to the query related public information shows that the cost of a baked sweet potato is 2-3 cents, selling price of about 5 yuan, the daily sales volume of 500-1,000 pounds, according to the minimum profit of 50% calculation, you can get 2,000-3,000 yuan of income per day, 1 year 700,000 yuan. Baked sweet potatoes, also known as roasted groundnut, is a food baked with groundnut, sweet and flavorful, more common in winter.