{"name":"break-even-calculator","description":"Calculates break-even units and contribution margin for a product's unit economics. Computes contribution margin per unit, margin percent, break-even units, expected profit when expected volume is provided, plus score, drivers, and recommendation. Use it as a break-even calculator API, contribution margin calculator, or fixed cost payback tool.","price":"$0.01","method":"POST","input_schema":{"properties":{"fixed_costs":{"type":"number","description":"Fixed costs to recover."},"unit_price":{"type":"number","description":"Revenue per unit."},"variable_cost_per_unit":{"type":"number","description":"Variable cost per unit."},"expected_units":{"type":"number","description":"Optional expected unit volume."}},"required":["fixed_costs","unit_price","variable_cost_per_unit"]},"input_example":{"fixed_costs":85000,"unit_price":49,"variable_cost_per_unit":14,"expected_units":4200},"output_example":{"calculator":"break-even-calculator","score":74.2,"grade":"strong","recommendation":"Proceed with standard diligence and covenant checks.","metrics":{"contribution_margin_pct":71.43,"break_even_units":2428.57,"expected_profit":62000},"drivers":[{"name":"debt_service_coverage","score":83.6,"weight":0.3,"note":"1.42x DSCR"}],"warnings":[],"source":"deterministic in-process finance calculator; no upstream API"},"x402_payment_required":true,"x402_facilitator":"https://api.cdp.coinbase.com/platform/v2/x402"}