Most independent operators get a monthly P&L from their bookkeeper, glance at the bottom line, and either feel okay or feel sick. Both reactions are wrong. The bottom line is a lagging indicator — by the time it tells you something, the month is over and the damage is done. The numbers worth watching are weekly, not monthly, and they live above the bottom line.
Three numbers to know every week
1. Prime cost (food + labor as % of sales)
Prime cost is the single most important operational metric in a restaurant. Target: 60–65% for full-service independents (28–32% food + 28–35% labor). Above 65% and your operating margin is squeezed before fixed costs even hit. Below 60% and you are either underpricing or running a model that won't scale.
Prime cost is the number to know on Monday morning every week. Not the bottom line. Not gross sales. Prime cost.
2. Comp percentage
What percentage of sales went out the door comped (free) or heavily discounted? There is no industry-standard "right" number — it varies by concept, daypart, and how aggressively you use comps as a service-recovery tool. What matters is the trend: a comp percentage that drifts upward week-over-week is a signal something is breaking (kitchen errors, front-of-house overcorrection, or someone gaming the system). Set your own baseline in month one, then watch the trend.
3. Cash on hand vs. weeks of operating expense
This is the steady-state buffer for a restaurant that's already past the opening ramp — different from the pre-open working capital you put in escrow before turning on the lights. Once you're operating, divide cash by average weekly expense to see how many weeks you'd survive at zero sales. Best-practice target: 2–3 months of operating cash on hand at any given time (per restaurant cash-reserve benchmarks). Industry data shows most small restaurants run much tighter — closer to 2–4 weeks — which is why a single bad month closes so many of them. The operators who get through 2008-style downturns are the ones holding the 2–3 month buffer.
P&L lines that matter (top to bottom)
- Sales: total revenue. Watch the trend, not the absolute number.
- Cost of goods sold (COGS): food + beverage cost. Should track to 28–32% of sales.
- Labor: hourly wages + management salary + benefits. Should track to 28–35% of sales.
- Prime cost: COGS + labor. Should be 60–65%. The headline number every week.
- Operating expenses: rent, utilities, insurance, marketing, repairs. Should be 18–25% of sales for full-service independents.
- EBITDA / operating income: what's left after prime cost + operating expenses. Healthy independents run 8–15%. Multi-unit operators target higher.
- Net income: after debt service, depreciation, taxes. The number that buys you a vacation. The above lines tell you whether the business is operationally healthy regardless of what happens here.
Lines that are noise (most of the time)
- Gross profit: sales minus COGS only. Hides the labor problem.
- SG&A: lumps too many different things together. Break out into operating-expense categories instead.
- Marketing as % of sales: most independents over-track this and under-track customer-engagement signals (review response rate, repeat-visit frequency, see customer engagement guide).
Why apps make this readable
The Restaurant Consultant covers prime cost as one of its twelve operational domains and pulls the weekly view into a single screen — so the operator doesn't have to wait for the bookkeeper's monthly report to know whether labor or food cost moved against them this week. The bookkeeper's report still matters for taxes, banking, and quarterly reviews. But operational decisions need weekly numbers.
(For deeper accounting framework, the Uniform System of Accounts for Restaurants is the industry standard chart of accounts; many bookkeepers use it.)
See the apps or read the labor cost guide.
Sources
Last updated: .
This article draws on industry-standard operational data plus 14 years of operating experience at Mouton's Bistro & Bar (Cedar Park, TX) and Mouton's Southern Bistro (Leander, TX).