Start with a consistent definition
Define operating profit before comparing stores. Owner wages, debt service, depreciation, taxes, and capital replacement may be handled differently in seller materials.
Build revenue from source records
Separate self-service, wash-and-fold, commercial accounts, vending, and other revenue. Reconcile payment-system reports and service tickets to bank deposits and tax records over the same period.
Capture the full operating cost
- Rent and occupancy charges
- Water, sewer, gas, and electricity
- Payroll, taxes, insurance, supplies, cleaning, and security
- Repairs, card-system fees, internet, licenses, and professional services
- A realistic reserve for machine and infrastructure replacement
Separate debt service from operating margin
Debt service depends on the buyer's financing and belongs in a separate cash-flow or cash-on-cash calculation. Do not omit loan payments from affordability analysis, and do not mix them into an operating margin without labeling the definition.
Use an illustrative example carefully
If a hypothetical store has $300,000 of annual revenue and $225,000 of defined operating costs, the illustrative operating margin is 25%. This example is arithmetic only; it is not an industry average or a forecast for any store.
Test market pressure
Recalculate margin if revenue declines, utility rates rise, machines require replacement, or new competition enters the trade area.
Already have a laundromat in mind?
Check the local market and tracked incoming projects before you go deeper into due diligence.
Check the market before you buy