Monday Memo

A Byte of Knowledge
'Trust' isn't a glamorous topic in the direct response marketing world.
But it should be.
Because while everyone's optimizing for clicks and conversions...
They're missing the asset that actually keeps customers around.
Think about it:
When customers deeply trust your brand - price sensitivity evaporates.
They'll happily pay premium rates for products they could find cheaper elsewhere.
They'll defend your brand against criticism without being asked.
And they'll stop comparison shopping entirely.
The supplement company that shows third-party lab results...
The accountant who calls to point out deductions you missed...
The local auto shop that fixes a minor issue at no charge rather than billing for the full hour...
They're not just being nice.
They're building something competitors can't easily replicate.
And here's what makes trust the ultimate competitive edge...
It compounds silently in the background.
It's nearly impossible for competitors to measure or steal.
And it creates customers who stop shopping around entirely.
No A/B test or funnel hack can compete with that.
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Something to Ponder

We Asked – AI Answered
Our Question:
"What are the three most important metrics to know to profitably scale your business, and why?"
AI's Answer:
Scaling profitably is about more than just growth—it’s about growing efficiently, ensuring every dollar spent generates measurable returns. Many business owners focus on vanity metrics (followers, page views, downloads) when they should be focused on profit drivers.
After working with top companies and studying high-growth businesses, I can confidently say these are the three most important metrics to track if you want to scale profitably:
1. Customer Acquisition Cost (CAC)
What It Is:
- The total cost to acquire a new customer, including ad spend, sales commissions, software costs, and marketing expenses.
- Formula: Total Marketing & Sales Costs ÷ Number of New Customers Acquired
Why It Matters:
- If your CAC is too high, you’ll burn cash before becoming profitable.
- If your CAC is too low, you might be under-investing in growth.
Key Data:
- A study by David Skok (Matrix Partners) found that for a SaaS business to be profitable, the Customer Lifetime Value (LTV) must be at least 3x the CAC (LTV:CAC ratio).
- Harvard Business Review found that companies with a CAC payback period of less than 12 months tend to be the most successful at scaling.
How to Improve CAC:
✅ Improve conversion rates (higher conversions = lower CAC).
✅ Increase average order value (AOV) (bundles, upsells).
✅ Optimize marketing spend (reduce wasted ad spend with better targeting)

2. Revenue Per Customer (RPC) or Average Revenue Per User (ARPU)
What It Is:
- The amount of revenue generated per customer over a given period.
- Formula:

Why It Matters:
- Higher RPC = higher margins = more cash to reinvest in growth.
- If RPC is low, you need a massive volume of customers to be profitable.
How to Improve RPC:
✅ Introduce upsells & cross-sells (McDonald’s “Would you like fries with that?” adds billions in revenue).
✅ Increase subscription revenue (Netflix, SaaS models make money via high ARPU).
✅ Segment customers (higher-value customers should get premium offers).
📌 Case Study: Apple increased its RPC by shifting from one-time iPhone sales to recurring services like iCloud, Apple Music, and AppleCare.
3. Contribution Margin (CM) – The True Profit Per Sale
What It Is:
- The amount of profit per unit sold after variable costs (but before fixed costs).
- Formula:

Why It Matters:
- If your CM is too low, scaling will burn cash instead of making money.
- A higher CM means more money can be reinvested into marketing & growth.
Key Data:
- Jeff Bezos focused on contribution margin, not gross revenue, to make Amazon profitable at scale—he pushed for lower fixed costs and better unit economics.
- McKinsey & Company found that a 1% increase in price, assuming no loss in sales volume, leads to an 8.7% increase in operating profits (showing how important CM is).
How to Improve CM:
✅ Increase pricing intelligently (Apple sells premium products at high CM).
✅ Lower cost of goods sold (COGS) (Tesla reduced battery costs to improve CM).
✅ Automate fulfillment (Amazon’s warehouses use AI to cut labor costs).
📌 Case Study: Costco operates at low gross margins but high contribution margins, because its membership fees offset costs, making scaling highly profitable.
Thanks for reading the Monday Memo.
Until next time!
The AI Marketers
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