The manual contains an end-to-end task for calculating the indicators of economic activity of an organization from the moment of its creation to the preparation of a business plan. The tasks of the manual contribute to the development of students' imaginative economic thinking, attentiveness, focus, as well as education of responsibility for the results of their work. Designed for students of institutions of secondary specialized education in the specialties "Commercial activities (by areas)," "Economics and organization of production."