What does this skill do?

The E-commerce Skill Unit Economics tool analyzes the actual profitability of your e-commerce business by calculating CAC, LTV, the LTV:CAC ratio, payback period, and the maximum allowable CAC per advertising channel. Based on your sales data, ad spend, and repurchase rate, it generates a structured report with a clear analysis and actionable improvement strategies to help you scale your business safely.

Validation Before Scaling
Make sure your unit economics are sustainable before increasing your advertising budget.
Comparison of Channels
Compare the actual performance of Facebook, TikTok, and Google Ads to determine which is the most efficient.
Maximum allowed CAC
Set the maximum procurement budget per customer that maintains profitability.
Reports for Investors
Generate structured financial analyses for partners, investors, or strategic decision-making.

Usage examples

📊 Complete Analysis
Calculate the profit per unit for my store: product price €45, profit margin €18.12, I spent €800 on Facebook and €400 on TikTok, for a total of 26 purchases. Tell me the CAC by channel and whether it’s profitable.
🚀 Before climbing
I'm going to triple my investment in Facebook Ads. Before doing so, analyze whether my current unit economics can support this based on the following data: [fill in your figures].
🎯 Maximum CAC
What is the maximum CAC I can pay per customer on Google Ads if my projected LTV is €85 and I need an LTV:CAC ratio of at least 3:1?
📈 Compare Channels
Compare the performance of Facebook, TikTok, and Google Ads: I have €500 invested in each, with different conversion rates. Which channel should I prioritize?

Features

CAC by advertising channel Calculate the exact acquisition cost broken down by Facebook, TikTok, Google Ads, and any other channel.
Basic and Projected LTV Calculate the LTV for the first purchase and the projected LTV, including the estimated repurchase rate.
LTV:CAC Ratio with Interpretation Classify the ratio as excellent, healthy, attention-required, or critical based on standard e-commerce thresholds.
Recovery period Determine how many months it will take to recoup your acquisition investment through the margin generated.
Actionable levers for improvement Get three actions prioritized by impact to improve LTV, reduce CAC, or increase margins.

Frequently asked questions

Selling price, contribution margin per unit, monthly advertising spend by channel, number of purchases generated, average ticket, estimated repurchase rate, and monthly fixed cost.
Yes. The skill calculates projected LTV based on the repurchase rate, even for single-product stores where a customer who makes two purchases is worth twice as much.
A ratio greater than 5:1 is excellent; between 3:1 and 5:1 is healthy; between 2:1 and 3:1 requires attention; and less than 2:1 is critical: low margin or too high CAC.
Yes. The skill calculates the CAC for each channel separately (Facebook, TikTok, Google Ads, etc.) and allows you to compare their effectiveness directly.
Unit Economics for E-commerce — CAC and LTV Analysis with Claude AI

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