Calculate three numbers before you hire anyone: your Lifetime Value (LTV), your Customer Acquisition Cost (CAC), and your real daily ad budget.
If your LTV to CAC ratio is below 3:1, you are losing money on every customer no matter how good the ads look. The 20 things agencies hide all trace back to founders who never did this math first.
Watch firstThe 20 things video
Below is the full breakdown from the founder. After you watch, the rest of this article shows you the exact formulas, examples, and the three paths to fix your marketing without getting burned.
20 Things Marketing Agencies Hide. Preston Durnford. PELORA Marketing.
Number 1LTV (Lifetime Value): What a single customer is actually worth
LTV is the total revenue a single customer will generate for your business over the full time they buy from you. It is the most important number in marketing because it tells you what you can actually afford to spend to acquire one.
Most founders guess at this number or use a single transaction value. That is why they get destroyed when an agency tells them "you need to spend $5,000 a month on ads." Without LTV, you have no idea if $5,000 a month is a gift or a fire.
LTV = Average Purchase Value × Average Number of Purchases per Year × Average Customer Lifespan in Years
Functional medicine example: $400 average visit × 4 visits per year × 3 years average retention = $4,800 LTV per patient.
If your LTV is $4,800, you can rationally spend up to roughly $1,600 to acquire each new patient (1/3 of LTV) and still have a healthy business. If you do not know your LTV, you cannot evaluate any agency proposal.
Number 2CAC (Customer Acquisition Cost): What it actually costs to land one
CAC is what it costs you to acquire one new paying customer. Most founders calculate this wrong by leaving out the labor, the software, the agency fees, the bonuses. Use the fully loaded cost or you will lie to yourself.
CAC = Total Marketing and Sales Spend in a period ÷ Number of New Customers Acquired in that same period
Example: $10,000 in ads, agency fees, sales tools, and bonuses in one month / 20 new patients acquired = $500 CAC.
Now compare to LTV. If LTV is $4,800 and CAC is $500, your ratio is 9.6 to 1. That is a strong business. If LTV is $1,200 and CAC is $500, your ratio is 2.4 to 1, and you are bleeding cash on every customer even though it looks like you are growing.
Number 3The LTV to CAC ratio: The number that tells the truth
A healthy LTV to CAC ratio is 3:1 or higher. For every $1 you spend to acquire a customer, you should generate at least $3 in lifetime revenue. Below 3:1 you are over-spending on acquisition. Above 5:1 you are likely under-investing in growth. Most healthcare and wellness brands with strong retention run 5:1 to 8:1.
If an agency cannot tell you what they expect your LTV to CAC ratio to be inside 90 days, walk away. They are selling activity, not outcomes.
Number 4How to calculate your daily ad spend (before you pay anyone)
This is the single calculation most founders never do, and it is why they end up overpaying agencies for the wrong work. Here is the three-step path.
Daily ad spend = (Monthly Revenue × Marketing Budget %) ÷ 30 days
Step 1: Set your monthly marketing budget as 15 to 20 percent of gross revenue for growth-focused businesses.
Step 2: Divide by 30 days to get your true daily spend cap.
Step 3: Allocate roughly 70 percent to active ads (Meta, Google, YouTube) and 30 percent to creative, software, and labor.
Worked example: a $50,000 per month clinic that wants to grow uses 20 percent. That is $10,000 per month total marketing budget. Divided by 30 days = $333 per day. Of that, $233 per day should be live ad spend across Meta and Google, and $100 per day should cover creative, software, and the team.
Now when an agency proposes a $6,000 retainer plus $200 per day ad spend, you know in 30 seconds whether that fits your math.
The hidden 20What most agencies will not tell you
These come from 12 years of running businesses, raising capital, hiring agencies, firing agencies, and building PELORA Marketing as the agency we wished existed when we started. None of these are illegal. All of them cost founders money.
Their actual margin. Most agency retainers run 60 to 80 percent gross margin. That is not the work cost.
Ad spend markup. Some agencies take 10 to 20 percent on top of your media spend. Ask in writing.
Who is actually doing the work. Senior pitches, junior delivery. Get names in your SOW.
Cancellation window. Many contracts require 60 to 90 days written notice and auto-renew annually.
Account ownership. If you do not own the Meta Business Manager and the pixel, you do not own the data.
Conflicts of interest. They may be running the same playbook on your direct competitor.
Vanity metrics in reports. Reach and impressions do not pay your rent. CAC and ROAS do.
Templated creative. The "custom" landing page is often a Webflow template with your logo dropped in.
Subcontracted overseas. Your editor, designer, or media buyer may be in Manila or Karachi.
Setup fees that compound. Onboarding, audit, strategy doc. Same retainer with extra invoices.
KPI shifting. When CAC misses, the report shifts to "brand lift" or "engagement."
Tool stack markups. They charge you for software at retail then pay annual contracts.
No real attribution. "Last click" reports hide the real source of revenue.
Reporting dashboards built to obscure. Pretty charts, missing line items.
Retention-driven allocation. Best people work on accounts most likely to churn.
AE bonus structures. Your AE gets paid for retention, not your results.
Generic creative briefs. The same brief gets recycled across clients and industries.
No content library handoff. If you leave, all the raw files stay with them.
Inflated team sizes. "Your team" is one project manager and three freelancers shared across 12 clients.
They will not coach you to bring it in-house. Their business model depends on you needing them forever.
Your moveThree paths forward (pick the one that fits)
Once you have your LTV, CAC, and daily ad budget calculated, you have three legitimate paths. Each one starts with the same hour of work: getting your numbers right.
Turn vision into reality
You are starting something new. A clinic, a brand, a product. You need to figure out how to launch it the right way without overpaying. We build the engine with you from day one.
Start a call →Audit your current marketing
You are already running. Ads, social, a website, maybe an agency. You want to know exactly what is working, what is leaking money, and what to fix. Audit comes back in 7 days.
Get the audit →Bring marketing in-house
You are done with agencies. You want your team running it. We teach the modern AI marketing stack and build the playbook so it lives inside your business permanently.
Train your team →Get the math right before you spend another dollar
PELORA Consulting is one operator (Preston) sitting with you to calculate your LTV, CAC, target CAC, daily ad spend, and the right channel mix for your business. $897 for the full Sprint.
Book the Sprint — $897 → Book a free 15-min callFAQCommon questions
What is LTV and how do I calculate it?
LTV (Lifetime Value) = Average Purchase Value × Average Number of Purchases per Year × Average Customer Lifespan in Years. Example: a $400 functional medicine visit, 4 visits per year, 3 years of retention = $4,800 LTV per patient.
What is CAC and how do I calculate it?
CAC (Customer Acquisition Cost) = Total Marketing and Sales Spend in a period ÷ Number of New Customers Acquired in that same period. Use the fully loaded cost including ads, agency fees, salaries, software, and bonuses.
What is a healthy LTV to CAC ratio?
3:1 minimum. That means $3 in lifetime revenue for every $1 of acquisition spend. Healthy healthcare and wellness brands often run 5:1 to 8:1 because retention is strong.
How do I calculate my daily ad spend?
Monthly Revenue × 15 to 20 percent marketing budget ÷ 30 days. Then allocate 70 percent of that to active ads and 30 percent to creative, software, and labor. Example: $50,000 per month revenue at 20 percent = $10,000 per month / 30 days = $333 per day total marketing.
How long should it take for an agency to show results?
Paid ads show real signal in 7 to 14 days. Funnel and creative optimization takes 30 to 60 days. SEO, AEO, and GEO take 90 to 180 days. Anyone promising week-one results is shifting metrics.
What is the difference between an audit, in-house build, and full agency?
An audit is one-time evaluation of what is working and what to fix. Best for businesses already spending on marketing. In-house build trains your team to run the modern AI marketing stack. Best for control and lower long-term cost. A full agency runs the whole engine for you. Best for founders who want to focus on operations.
Should I hire a consultant before an agency?
Yes, if you do not already know your LTV, CAC, target CAC, and channel attribution. A consultant for $897 to $4,500 can save you $30,000 to $100,000 in agency retainer waste by clarifying your numbers first.
How much should a small business spend on marketing?
The U.S. Small Business Administration recommends 7 to 8 percent of gross revenue for established businesses, and 12 to 20 percent for growth-stage businesses. PELORA recommends 15 to 20 percent for health, wellness, behavioral health, and consumer brands actively trying to scale.
What questions should I ask a marketing agency before signing?
Cancellation window in writing. Names of who works on my account day to day. Target CAC for my industry. Ad spend markup percentage. Account, pixel, and Meta Business Manager ownership. Conflict-of-interest policy in my niche. What reporting includes and how often.
How does PELORA Marketing approach LTV and CAC differently?
We are operator-led, not generalist. Every engagement starts by calculating your true LTV and CAC. We do not mark up ad spend, do not run conflicting clients in the same niche, and give you full account ownership.
Last updated June 7, 2026. By Preston Durnford. Newport Beach, California.