Illustrative figures. The pattern is not: a higher conversion rate on a cheaper product at a thinner margin routinely loses to the opposite.
Conversion rate is the most quoted number in ecommerce and it decides almost nothing. It is a ratio with no money in it, so a store can raise it by discounting into a loss and the chart will applaud. The four numbers that actually decide whether a dropshipping store survives are contribution per order, blended acquisition cost, repeat rate and cash conversion. Only one of those appears on a standard dashboard, and it is not the one most people watch.
The problem with a ratio
Conversion rate is orders divided by sessions. That expression contains no price, no margin, no cost, and no currency at all.
Which means it can be improved by things that make you poorer. Cut prices by a third and conversion rises. Offer a discount code sitewide and conversion rises. Buy cheaper, lower-intent traffic and conversion falls even though nothing about the store changed.
Chapter 2.1 made this point in passing and it deserves the full version here: a 0.9% conversion rate on a $280 product beats a 2% rate on a $60 one, and no dashboard sorted by conversion rate will ever tell you that.
Conversion rate is a ratio with no money in it. You can improve it all the way to insolvency. The Dropshipping Playbook
The four that decide it
| Metric | What it answers | Where it comes from |
|---|---|---|
| Contribution per order | Does a sale make money | Assembled by hand. Not in the admin |
| Blended acquisition cost | Is the treadmill slowing down | Ad spend over total orders |
| Repeat rate | Are you building an asset | Customers with 2+ orders in a fixed window |
| Cash conversion | Can you pay for next week | Payout timing against spend timing |
Contribution per order
The one number that makes every other decision in Level 04 legible. Selling price, minus product and shipping cost, minus fees, minus what the order cost to acquire.
It is the reason bundles can lose money while average order value rises, per chapter 4.2, and the reason a campaign discount costs more than its headline percentage, per chapter 4.5. If you track one number that is not already in your admin, make it this one.
Blended acquisition cost
Total acquisition spend divided by total orders, including the orders you did not pay for. This is where retention shows up as money rather than as a percentage: chapter 4.6 works through why moving three orders in ten to returning customers cuts it by about a third.
Watch the trend rather than the level. A blended CPA that falls month on month means the store is accumulating something. One that is flat means you are renting your revenue.
Repeat rate
Customers with more than one order, over total customers, in a fixed window. Fix the window or the number drifts upward as the store ages and tells you nothing.
Reported ecommerce averages sit near 28%, with an enormous spread by category, so compare against your own store last quarter rather than against a cross-category figure.
Cash conversion
The one that is specific to this business model and is missing from every generic metrics list.
Chapter 1.3 documented stores with 20% of every transaction held for 90 to 120 days while ad spend and supplier invoices continued daily. Their profit and loss looked fine while the bank account emptied. If you run on a reserve, or on any delayed payout, track the gap between when revenue is earned and when it is spendable, because that gap is what actually kills stores in a growth month.
The metrics to demote
Not useless, just not decisive, and dangerous when they are the ones on the wall.
One replacement worth adopting
If conversion rate is the habit, revenue per visitor is the better habit and costs nothing to switch to. It is revenue divided by sessions, so it contains both halves of the thing you care about, and it cannot be improved by discounting your way to more orders at lower value.
Better still, contribution per visitor, which is the same idea with costs subtracted. That is the number that answers "is more traffic worth buying", which is the only question the traffic decision actually turns on.
Chapter 2.1 put the reliability threshold at 500 sessions over 30 days. Below it, every metric on this page moves a full point on one good day. Track them anyway, so the history exists, but do not make decisions from them yet.
What a small store's dashboard should be
Not a dashboard. A short list, updated weekly, in whatever you already use.
- Contribution per order, and its trend over four weeks.
- Blended acquisition cost, and its trend.
- Repeat rate, in a fixed window, monthly.
- Cash available against next month's committed spend.
- One discovery number: zero-result search rate, or share of catalogue with no views, per chapter 4.9.
- What you changed this week, dated. That last line is chapter 5.2, and it is what makes the five above interpretable at all.
Common questions
So conversion rate is useless?
What is contribution per order exactly?
Why does cash conversion matter if I'm profitable?
How often should I look at these?
One number pays for the rest
What a single order is worth decides what every other fix can afford. Chapter 4.1 is where that number moves.
Go to chapter 4.1