Key figures are used in the managerial economics for the assessment of companies. So the key figures are for an objective assessment of the business activity and are taken as base for decisions. Economically key figures enables through a target-performance comparison a control of the business activity as well as a documentation or coordination of important topics and correlations. Hence key figures enable condensed information and a high focusing of the determined aspects. Nevertheless key figures don’t provide information about the long-term success factors.