Donut Shop Revenue Calculator

Why prime cost kills more donut shops than rent does

Prime cost — food plus labor as a combined percentage of revenue — is the single most important number in any food business. For a donut shop, prime cost above 65% leaves so little room for rent and overhead that a slow week can push you into the red. The calculator surfaces this by summing food cost and labor cost in dollars before subtracting fixed overhead, so you can see exactly where the pinch point is.

A shop doing 80 customers a day at a $9 average ticket generates about $19,000 in monthly gross revenue. At 35% food cost and 28% labor, prime cost sits at $12,000 — leaving $7,000 to cover rent, utilities, insurance, and marketing before a dollar of profit. That math works in a low-rent location. It stops working the moment you sign a $5,500 lease.

The tool lets you slide food cost and labor independently. A four-point drop in food cost on $19,000 in revenue is roughly $760 per month — real money. Running that experiment takes five seconds here versus a half-hour reworking a spreadsheet.

What average ticket actually drives in a donut business

Most donut shop owners think in units — donuts, muffins, beverages. The calculator thinks in average ticket, which is total revenue divided by total customers. A customer who buys two donuts and a coffee at $9.50 is worth 60% more than a customer who grabs a single donut for $2. Average ticket is the lever that matters most because it does not require you to find new customers.

Bundling is the fastest way to raise it. A coffee-and-donut combo, a half-dozen box, or an add-on pastry at the register can push the average ticket from $5 to $8 without increasing foot traffic. Enter your current average, then test what a $2 increase does to your monthly net. On 80 customers a day over 26 working days, that $2 is $4,160 in extra monthly gross — more than many shops make in net profit total.

Keep the average honest. Use a real number from your POS over a typical week, not a record Saturday. An inflated ticket makes the model look healthier than reality, which defeats the whole point.

Fixed overhead: the number that does not move when rain does

Rent, utilities and insurance, and marketing are entered as flat monthly dollar amounts. They do not flex with customer volume. This separation is deliberate — it lets you see exactly how much gross revenue you must generate every month just to reach zero. Below that line you are losing money on every working day.

A shop with $4,500 in monthly overhead needs to clear that amount before food and labor costs are paid. At a 37% combined prime cost, you need roughly $7,100 in gross revenue to break even on overhead alone. That is about 31 customers per day at a $9 ticket over 26 days. Knowing that number means you can answer a real question: is a slow Tuesday still covering overhead, or is it quietly costing you?

Marketing shows up here as a fixed line because most shop owners spend a fixed monthly amount — boosted posts, loyalty app subscription, local ads — regardless of how the week went. If you are not spending anything on marketing yet, enter zero and note how much margin you have to invest before you eat into profit.

Reading the Business Verdict and Smart Insights

After you enter your inputs, the tool produces a Business Verdict — a plain-English read on whether your shop is profitable, razor-thin, or losing money. It also flags when prime cost crosses into dangerous territory (above 65%) or when profit margin is strong enough to sustain growth. These are not generic observations; they fire based on your actual numbers.

The Smart Insights panel surfaces specific actions: if your food cost percentage is high, it tells you what dollar amount a three-point improvement would recover. If your no-show or cancellation rate is cutting into revenue, it quantifies that loss. Treat these as a diagnostic, not a verdict — the model cannot know your local lease market or whether your supplier just raised flour prices.

The Projections tab shows revenue and profit at different customer volumes, which is useful for capacity planning. If you are considering adding a second shift or extending weekend hours, plug in the additional customers per day and see whether the incremental revenue justifies the labor.

When to run this before a pricing or staffing decision

Before raising prices: enter the new average ticket, note the net profit increase, then mentally subtract the customers you might lose. The tool cannot predict churn, but it shows how much volume you can afford to drop before the price increase stops being worth it. On a 10% price bump from $9 to $9.90, you could lose about 8% of customers and still come out ahead.

Before adding a part-time employee: increase your labor cost percentage by the equivalent monthly dollars divided by current gross revenue, and watch what happens to net. A $1,200-per-month part-time hire might drop your margin from 14% to 7% — healthy if it lets you open longer, bad if you are already near breakeven. Run the numbers before you make the offer.

Donut shop owners who model before they decide consistently make better calls than those who find out later on the bank statement. Run it before the next big call — price increase, lease renewal, or staffing change — and bring numbers instead of intuition to that conversation.

Donut Shop Revenue Calculator vs. the alternatives

How to use it

1. Enter Customers Per Day and Working Days Per Month — use your real monthly average, not your best week.
2. Set Average Ticket ($) to what a typical customer spends across donuts, pastries, beverages, and any add-ons.
3. Adjust the Food Cost (%) and Labor Cost (%) inputs to match your actual books; include your own wage in labor.
4. Enter Monthly Rent, Monthly Utilities and Insurance, and Monthly Marketing as flat dollar amounts.
5. Read the Per Customer Profit, Profit Margin, and Monthly Revenue in the summary cards, then use the Projections tab to test different volume or pricing scenarios.

Who it's for

• New shop owner sizing a lease — Models whether 60 customers per day at a $10 average ticket can support a $4,200 monthly rent before signing, avoiding a commitment that only works at peak volume.
• Owner considering a combo menu add — Tests what raising average ticket from $6.50 to $9 via coffee-and-donut bundles does to monthly profit — finds an extra $3,100 per month without adding a single new customer.
• Multi-location operator benchmarking locations — Enters each store's numbers separately to compare net margins side by side and identify which location has a food cost problem versus an overhead problem.
• Shop preparing a bank loan package — Uses the Export to CSV function to produce a clean monthly profit projection for a lender rather than submitting a hand-built spreadsheet.
• Owner evaluating extended hours — Adds the projected extra customers from a 6 AM opening, increases labor cost proportionally, and checks whether the incremental margin justifies the earlier shift.

Key terms

Prime cost

The combined total of food cost and labor cost as a percentage of gross revenue. The primary profitability lever in any food-service business.

Average ticket

Total revenue divided by total customer transactions. Measures the typical spend per visit, not per item. Raising average ticket is usually faster than finding new customers.

Fixed overhead

Costs that stay constant regardless of sales volume — rent, utilities, insurance, and marketing in this model. These must be covered before any net profit exists.

Net margin

Net profit expressed as a percentage of gross revenue. For a donut shop, a healthy net margin typically falls between 8% and 18% once the owner is paying themselves.

Breakeven

The gross revenue level at which all costs — food, labor, and overhead — are exactly covered and net profit is zero. Knowing this number drives better pricing and scheduling decisions.

Sources & further reading

• NACS — National Association of Convenience Stores — NACS tracks donut and packaged-pastry unit sales through convenience stores — the largest competing retail channel for boxed donuts — giving donut shop owners pricing-pressure benchmarks against c-store dozen-pack programs.
• Dawn Foods — donut mix and bakery ingredient supplier — Dawn's donut-mix product specs and operator resources publish yield-per-bag, fryer-shortening absorption rates, and glazing benchmarks that donut shop owners use to cost a dozen at the actual scratch-versus-mix breakeven point.
• BLS OES 51-3011 — Bakers occupational wage data — The BLS Bakers wage table gives donut shop owners the current median and 10th-to-90th percentile hourly rates for the production bakers who run the early-morning fry shift.
• IRS — Restaurant Industry Overview for food-service tax treatment — The IRS restaurant overview covers tip reporting, the 8% gross-receipts allocation rule, and Section 263A inventory capitalization rules that apply to a donut shop's flour, sugar, and shortening inventory.
• FoodService Director — donut shop and quick-serve operator publication — FoodService Director covers daypart pricing, breakfast-segment customer counts, and the morning-coffee-and-donut bundle economics that donut shop owners use to benchmark commuter-hour ticket averages.