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Unit Economics & LTV to CAC Modeler
Builds a conceptual unit economics framework to calculate Customer Acquisition Cost (CAC) and Lifetime Value (LTV) targets.
Use Case
Use this prompt to build sustainable financial health and determine how much you can afford to spend on marketing.
AI Prompt
Act as a growth-stage CFO. Help me model the unit economics for my startup. We are a [Insert Business Model, e.g., SaaS, marketplace, e-commerce] startup. Our average pricing/pricing model is: [Insert Pricing, e.g., $49/month subscription]. Our estimated churn rate is [Insert Churn, e.g., 3% per month] or average retention lifespan. Walk me through the exact formulas to calculate: 1. Customer Lifetime Value (LTV). 2. Target Customer Acquisition Cost (CAC) to maintain an ideal 3:1 LTV to CAC ratio. 3. The payback period. Also, suggest three specific strategies to lower CAC and three strategies to expand LTV based on our business model.
How to Use
- 1Insert your business model, pricing, and estimated churn into the placeholders.
- 2Review the calculations and establish these numbers as key KPIs for your growth team.
- 3Apply the CAC and LTV optimization strategies to your product-led growth model.
Example Output
Lifetime Value Calculation: Based on your forty nine dollar monthly subscription and a three percent monthly churn rate, the average customer lifetime is thirty three point three months. This results in an estimated Customer Lifetime Value of one thousand six hundred and thirty three dollars. Target Customer Acquisition Cost: To maintain a healthy three to one ratio, your maximum Customer Acquisition Cost should be five hundred and forty four dollars. Payback Period: If your acquisition cost is at the maximum target, your payback period will be approximately eleven point one months. CAC Reduction Strategies: First, build a viral loop by incentivizing existing customers to invite friends for free credits. Second, focus on organic content targeting search queries with high purchase intent. Third, optimize your onboarding flow to increase signup-to-activation conversion rates. LTV Expansion Strategies: First, introduce annual billing at a discount to lock in longer retention. Second, create add-on features that customers can purchase as they scale. Third, implement proactive email campaigns to re-engage users who show signs of drop-off.
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