The company Gastro Dienst Haring was founded in 1986 by Mr. Johann Haring. Its business focus is on delivering food and non-food items to gastronomy businesses. The one-man business grew and changed into a GmbH in 2011 with over 40 employees. Due to the constant growth of the Haring business, however, cost structures became more complex and price calculation more difficult. This situation was further complicated by the fact that numbers only came from the accounting department. CAMPUS 02 University of Applied Sciences was therefore asked to set up the cost accounting of Gastro Haring by using a Microsoft Excel Tool.