unless I&#x27;m misunderstanding, isn&#x27;t this double counting the costs? wouldn&#x27;t the margin (revenue-costs &#x2F; revenue) already take into account the cost of acquiring customers?<p>in their example, 52% margin and a $400 CAC:<p><pre><code>  LTV&#x2F;CAC = 0.25 years x $2160&#x2F;year x 52% &#x2F; $400 = 0.70x</code></pre>