A few years ago, we took on a winery that knew exactly which wine paid the bills. It was their volume SKU. 3,500 cases a year into distribution, the label everyone in the market recognized, the one the rest of the portfolio leaned on.
We ran the numbers. They lost money on every single case they sold.
They weren't careless. They had a CFO at the time. They knew their gross margin was healthy, right around 40%. Nobody had ever asked what it cost them to make those sales.
That number has a name, and it is the one I want more winery owners looking at.
What contribution margin actually is
Gross margin tells you what's left after the cost of the wine in the bottle. Contribution margin tells you what's left after the cost of the wine and everything you spent to move it.
Sales, less cost of goods sold, less the costs to actually make the sale.
That last part is where it all lives. Billbacks and depletion allowances. Freight. Samples and POS. Commissions. The salaries of the people doing the selling. Credit card fees. The shipping you quietly subsidize. The staff hours on the tasting room floor.
Gross margin is a production number. Contribution margin is a business number.
Two channels can have identical gross margins yet completely different economics because one costs three times as much to serve. Gross margin will never show you that. Contribution margin is the only view that puts your channels on the same footing and lets you rank them honestly.
What it looked like for that winery
Here is roughly what we found on that 3,500-case SKU. The numbers are rounded, but the shape is real.
Per case into distribution:
Revenue — $120 Cost of goods sold — $72 Gross margin — $48, or 40%
We feel good about this. And a lot of the time, that's where the conversation stops.
Now let's look at the rest:
Billbacks and discounts — $30 Freight — $8 Allocated sales salaries — $20 Total cost to make the sale — $58
Contribution margin: negative $10 per case.
Across 3,500 cases, that's $35,000 walking out the door on their supposed hero SKU, before a single dollar of overhead.
The billback line is what got them. When we asked how their billbacks were going, they said, "Not too bad."
They were giving away the equivalent of three bottles with every case they sold.
And they had good reasons for every one of those programs. They were chasing shelf placement in the best sell-through grocery stores in their markets, which is exactly where you want your volume SKU to be. Each program was defensible on its own. Nobody ever added them up. Because the total never appeared as a cost, it never appeared in anyone's thinking.
That's the pattern. It's seldom one catastrophic number. It's four or five ordinary ones that nobody added up.
Now do it for your DTC channels
This is where it gets genuinely useful for most wineries, because DTC isn't one channel. It's four or five wearing the same name.
Start with DTC as a whole, then split it. Tasting room. Online. Club or subscription. Events. Retail. Run contribution margin on each one separately, and you will find they look nothing alike.
Events are the clearest example. On the East Coast especially, where you have to compete hard to get people through the door, live music and ticketed events are a real part of the business model. Run the contribution margin on those events, and it very often comes back negative.
That may be completely fine. Getting people in the door is your entrance price. The question is what happens once they're inside. How much wine moves during the event? How many of those people convert to club members with recurring revenue and a long lifetime value?
So the rule I'd offer is this: a channel that loses money can absolutely earn its place, but only if you can name the channel it feeds and the rate at which it converts. If you can't name both, you don't have a strategy; you have a habit.
And if a channel is deeply negative, no amount of strategic storytelling fixes it. Contribution margin can't be the only input to the decision. But it has to come first.
Where to start
You don't need a new system for this. You need revenue and case equivalents by channel, discounts by channel, fulfillment and tasting room payroll, shipping cost and how much of it you passed on, and a COGS number you actually trust.
Reach out to your accountant this week and ask them to build out contribution margin by channel. If they can't, or your system won't support it, that's worth knowing too.
At Protea Financial, we do this work for wineries every week: SKU-level costing, channel-level contribution margin, and the uncomfortable conversation that usually follows. If you've never seen your business cut this way, I'd genuinely like to show you what it looks like.