S26 · The Numbers

Finance & Unit Economics

P&L, CAC, LTV, Cash Flow, Funding

Section 26 / The Numbers / by Rob Ward

Founder's Principle

Revenue Is Vanity

Revenue is vanity, profit is sanity. If you don't know your contribution margin, you don't know if your brand actually works. Build in fat because you'll need it. Budget for CAC. It's often a multiple of COGS and the thing most founders forget. Your brand will sink or swim based on unit economics.

Key topics covered

The DTC P&L Structure
Breaking out returns and discounts from gross revenue lets you spot margin erosion early.
The Contribution Margin View
For daily and weekly management, contribution margin is the most useful lens:
Unit Economics Deep Dive
CAC: Total marketing spend / new customers acquired. Include ALL marketing spend for blended CAC, not just your best channel. Track YOUR blended CAC trend over time - that matters more than outdated industry averages.
Cash Flow Management
Cash flow is the number one killer of profitable DTC brands. The fundamental tension: to grow, you buy more inventory. To buy inventory, you need cash.
Pricing Strategy & Discipline
Pricing is the single highest-leverage financial decision in your brand. Most founders set prices in five minutes and never revisit.
When to Raise Capital vs Bootstrap
There's nothing wrong with raising money. But there's also nothing wrong with growing a sustainable, profitable business on your own terms.
Funding Options
Debt: Bank loans (hard under $5M), revenue-based financing (Wayflyer, Settle - see Solutions section above for fee structures, all should be researched for current rates and provider stability)…
Financial Planning and Budgeting
Annual Planning (start earlier than you think): Revenue forecast bottom-up by channel and month. Marketing budget as a ratio of projected revenue (not a fixed number). Map headcount to revenue milestones, not dates.

Rob's take

At Quad Lock, Chris and I handled the bookkeeping, reconciled all payments, and paid every invoice ourselves until about $10M. Not because I enjoy bookwork. Because it was the best way to be completely across the finances in real time. When you're bootstrapped and growing fast, spending heavily on ad media and stock simultaneously, you need to feel the cash flow, not just read a report about it. Doing the books myself meant I always knew exactly how fast we could grow and when we needed to pull back.

Our first financial controller came on around $10M. We didn't have a full-time CFO until after our PE sell-down north of $50M. And we didn't start building a C-suite until past $100M. See Section 25: Team & Culture for the full team evolution.

This isn't a blueprint. If you've raised capital or have a co-founder with a finance background, your path will look different. The principle is: stay as close to the numbers as your situation demands. In the early days of high growth with limited cash, that meant doing it myself.

Finance is where operating reality shows up. If the numbers do not work at the unit level, growth just scales the problem.

Being bootstrapped forces financial discipline in a way that raising capital never does. Every dollar of inventory is a dollar you can't spend on marketing. Every pricing decision is a bet on whether you'll have enough margin to fund growth. When nobody is writing cheques, you learn to read the numbers very quickly. That's not a disadvantage. It's the reason bootstrapped brands often have the cleanest unit economics in the market.

The DTC P&L Structure

Breaking out returns and discounts from gross revenue lets you spot margin erosion early. Contribution Margin sits between Gross Profit and EBITDA (earnings before interest, tax, depreciation and amortisation) because it is the number you manage daily - what you keep from each order before fixed costs and marketing. Platform costs are split: per-order transaction fees (Shopify, payment processing) belong in variable costs, while SaaS subscriptions belong in overhead.

What "Healthy" Typically Looks Like by Stage:

These ranges represent what well-run DTC brands target - not the median. They vary significantly by category (beauty brands will hit the high end, apparel and electronics the low end). Use them as aspirational benchmarks to spot where your P&L has room to improve.

*Tech/SaaS is shown as a benchmarking lens only. In practice, some of it sits inside variable costs and some inside overhead, so don't add every row mechanically.

*EBITDA is shown as a healthy target range at each stage, not the strict arithmetic result of summing the worst-case or best-case combination of every line above. A brand at the worst end of every input would produce a wider negative EBITDA. The bands are what well-run brands actually deliver.

At $1M, you might not be profitable, that's okay if unit economics are sound. At $10M, profitability becomes non-negotiable, target 10%+ EBITDA. At $50M+, target 15-20%+ EBITDA margins. At $100M+, you should be seeing volume benefits on COGS and marketing efficiency improving. These EBITDA ranges also directly determine your valuation multiple, see Section 28: Valuation & Exit.

These are top-quartile benchmarks across all DTC categories. Your specific category, margin structure, and growth rate will shift these ranges. Use them to spot where your P&L has room to improve, not as universal targets.

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What you'll walk away with

P&L formatted correctly with DTC-specific line items (COGS, fulfilment, marketing separated)
Contribution margin calculated per order (first purchase and repeat)
Blended CAC and nCAC tracked (all marketing spend / new customers)
Set an LTV:CAC target and review progress monthly.
Set a payback target and track it monthly.
13-week rolling cash flow forecast built and updated weekly
Revenue recognition timing correct (revenue recognised on delivery, not payment)
Supplier payment terms optimised (target Net 30 or better)
2-3 months operating expenses held in cash reserve
Monthly financial review cadence established