This document discusses various metrics that are important for startups and growth companies to track, including actionable metrics, customer acquisition cost (CAC), lifetime value (LTV), and cohort analysis. It defines each metric and provides examples. For CAC, it explains how to calculate it and considerations when doing so. It also provides guidelines for evaluating CAC and LTV ratios that indicate a stable business. For cohort analysis, it describes how to analyze user behavior and engagement over time by grouping users into cohorts based on acquisition date.
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CAC
CAC can be calculated by simply dividing all the costs spent on acquiring
more customers (marketing expenses) by the number of customers
acquired in the period the money was spent.
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CAC common mistakes
• Consider the cost per lead and not cost per acquisition
• Failing to include all the costs incurred in user acquisition such as
referral fees, credits, or discounts
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CAC valuation
• Great Business = CAC Payback < 6 months
• Nice Business = CAC Payback equal to 1 year
• Low Business = CAC Payback > 1 Year
• Unstable business = CAC Payback never reached
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LTV
LTV is a prediction of the net profit attributed to the entire future
relationship with a customer.
(Avg Monthly Revenue per Customer * Contribution Margin per
Customer) ÷ Monthly Churn Rate
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Cohort Analysis
Is a subset of behavioral analytics that takes the data from a given data
set (e.g. an e-commerce platform, web application, or online game) and
rather than looking at all users as one unit, it breaks them into related
groups for analysis.
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Cohort Analysis
• Pick the right set of metrics rather than a vanity metric (like app downloads)
• Pick the right period for a cohort — this will be typically be a day, a week, or a month depending on the business
(shorter time periods typically make sense for younger businesses, and longer ones for more mature businesses)
• Period 1 (day, week, or month) — 100% of install base takes some action that is a leading indicator for revenue, such
as buying a product, listing a product, sharing a photo, etc.
• Period 2 — calculate the % of install base that is still engaging in that action a week or month later
• Repeat the analysis for every subsequent cohort to see how behavior has evolved over the lifetime of each cohort
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Assumptions
If you are developing a new product or service you should start with what
you have: research, interviews, competitive analysis and assumptions.