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What does one food-truck order contribute?

Illustrative case · One owner-operated bowl-menu food truck; five three-hour private-site service windows per week · Seattle, Washington; King County regulatory case

Explore this business · Unit economics and KPIs

A Year 1 base order brings $15.60 pretax sales and $10.60 contribution after recipe/drink cost, waste, serviceware, processing and state B&O. That must still pay shifts, sites, travel, overhead and debt. A simplified neutral 22-window month needs 1,555 orders to cover those commitments.

What counts as one unit?

One unit is a completed bowl transaction with an expected sealed-drink attachment. Chicken mix 70.0% and drink attachment 40.0% are hypotheses. Bowl receipt $14.40 plus expected drink revenue $1.20 equals $15.60. This is not observed till data.

Do not count a drink as another bowl order or multiply receipt by both entree and drink units. Cash/card mix changes cost rather than adding revenue. No tips, alcohol, refunds, platform commission or catering receivable are included.

How does the receipt become contribution?

Base order · Year 1 · USD before tax
LineAmount per orderMethod
Bowl and expected drink$15.60Weighted mix and add-on
Recipe before prepared loss$3.225Shared grain/vegetables/sauce plus weighted protein
Ingredients after prepared loss$3.36Recipe / one minus 4.0% loss
Expected purchased drink$0.32Attachment × drink cost
Complete serviceware$0.74Bowl/lid, requested utensil, label/napkin
Processing$0.51Card share × gross tax-inclusive fee plus fixed fee
State retailing B&O$0.07Net receipt × published rate; before credit
Total deductions$5.00All unit costs above, excluding shifts
Contribution$10.60Receipt less unit deductions

Recipe includes $0.55 grain, $0.65 vegetables and $0.25 sauce, plus $2.00 chicken or $1.25 vegetable protein. Allowances already assume raw-to-cooked yield. $0.13 prepared-loss cost is separate unsold/handling waste. Weighed supplier/yield trials are needed.

Square Free in-person fee is 2.6% plus $0.15. Fees apply to payments including sales tax. Frozen Q4 Seattle tax adds $10.55 per $100 of net food sales; check the live service-address rate at launch. State retailing rate and prepared-food treatment establish the B&O basis.

The container-only comparison is $0.242 each with lid separate. Cold-only PLA lids are not inferred suitable for hot meals. Local acceptance/utensil rules need a complete procured set.

Which station limits sales?

Illustrative output per completed window
ConstraintCalculationLimit
Usable service180 minutes less 30 interruption allowance150 minutes
AssemblyUsable minutes / 1.5 per bowl100 orders
Parallel payment/handoffUsable time / 45 seconds per order200 orders
Commissary prep120 clock minutes × gross yield × sellable fraction115.2 bowl equivalents
Assumed truck load150 gross portions × sellable fraction144 bowls

Assembly limits output to 100 orders. Actual engine portions are floored. Payment occurs in parallel through the assistant, so its time is not added serially. Resupply/water/waste and approved food flow still constrain service. County guidance does not approve this hypothetical load.

Five two-hour prep sessions fit the referenced twenty-clock-hour membership; overlapping workers are both paid. Peak helper supports handoff/restocking without adding assembly capacity. If trials show slower production, reduce capacity before raising demand.

Why is contribution not order profit?

Regular burdened roster costs $489.06 per scheduled window. Site fee plus expected completed-window fuel bring the neutral schedule commitment to $564. Monthly overhead plus permits is $2,581 and loan payment $1,494. These are outside unit deductions.

Canceled windows retain regular pay/site charges. Measure sales per completed window, but commit pay against the scheduled calendar. Treating every shift as a percent of sold orders would falsely make its cost vanish when weather closes service. Nine owner hours cover two prep, two travel/setup, three service, one cleanup and one administration. Seven assistant hours cover 1.5 prep, 0.5 loading/setup, one paid travel between work locations, three service and one cleanup. Actual travel needs a timed route trial.

Which volume threshold helps this decision?

In a neutral 22-scheduled-window Year 1 month, divide overhead plus 22 schedule commitments by exact unit contribution and round up. Before debt that is 1,414 orders; after adding payment 1,555. At assumed availability, debt threshold averages about 74.4 per completed window. It excludes peak-helper steps, April permit cash, stock change, collection lag and income taxes.

Full monthly forecast is the liquidity test. The same annual average can hide winter weakness and capacity-capped summer, with differing paid hours per order. Track labor, waste, queue abandonment, completed orders and settlement. This threshold is a case result, not a universal healthy volume.

The profit and cash model uses this same receipt/recipe basis with helper, calendar, permits and funding. An attractive unit contribution needs executable demand to cover the route.

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