Map your per-customer profitability in 10 minutes

Beginner
10 min
English

Calculate your customer acquisition costs and lifetime value to see exactly how your business makes money per sale.

Steps

  1. Open ChatGPT or Claude (both have free tiers).
  2. Copy the prompt template below.
  3. Replace the {business_description}, {average_price}, {cost_to_serve}, and {marketing_spend} variables with your actual business details.
  4. Paste the filled prompt into the AI and press Enter.
  5. Review the generated unit economics table (Gross Margin, CAC, LTV).
  6. Iterate once by asking the AI: 'What happens to my profit if my marketing spend increases by 20%?'
  7. Use the final numbers to decide if you should adjust your pricing or marketing budget.

Prompts to Use

Act as a financial analyst for startups. I need to understand my unit economics. My business is {business_description}. My average customer pays {average_price} per month. It costs me {cost_to_serve} to deliver the service per month. I spend {marketing_spend} to acquire one new customer. Calculate my Gross Margin, Customer Acquisition Cost (CAC), and Lifetime Value (LTV) assuming a 2-year average customer lifespan. Output the results in a simple markdown table and provide a 2-sentence summary of my business health.

Tools Used

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