This document summarizes the cost structure and estimations for a proposed fashion app. It outlines key corporate activities like B2C and B2B marketing, editorial content creation, and product development. Costs are estimated on an activity and resource basis. The editorial team is estimated to cost around 90,000 euros annually based on trend topic creation and style selection. Product development is estimated to cost over 200,000 euros including resources like a product manager, designer, and developers. Further costs for marketing, sales, and management will be estimated later.