Create a unit economics model template for {{target_audience}} in a {{tone}} tone, compatible with {{platform}} and designed for {{purpose}}. Include: Template Overview, Setup Instructions, Input Section (revenue drivers, cost drivers, timing and growth assumptions), Calculation Section with Excel formulas, Output Dashboard (EBITDA, scenarios, charts), Scenario Manager, and User Guide. Use {{placeholder}} markers for user-fillable fields. Keep under 1800 words. Skip any section if information is unknown. Paste any relevant background information after these instructions before running.