Your most profitable day depends entirely on location, customer base, and what you're serving. Most food truck owners rely on instinct rather than hard data. But those numbers reveal patterns that gut feelings miss completely.
Collect your sales and cost data per day
You'll need three key numbers to identify your most profitable day: daily revenue, direct costs, and your share of fixed expenses.
- Revenue: What you earn per day
- Direct costs: Ingredients, fuel, parking fees
- Indirect costs: Insurance, truck depreciation, permits
💡 Example:
Food truck at office location, Tuesday:
- Revenue: €420
- Ingredients: €126 (30% food cost)
- Fuel: €25
- Parking fees: €15
- Daily portion of fixed costs: €35
Profit Tuesday: €420 - €201 = €219
Calculate profit margin per day of the week
Track each day's earnings and expenses for at least 4 weeks. You need this baseline to spot real trends versus random fluctuations.
Daily profit formula:
Profit = Revenue - (Ingredient costs + Fuel + Parking + Daily portion of fixed costs)
💡 Example weekly overview:
- Monday: €180 revenue, €95 costs = €85 profit
- Tuesday: €420 revenue, €201 costs = €219 profit
- Wednesday: €380 revenue, €185 costs = €195 profit
- Thursday: €450 revenue, €215 costs = €235 profit
- Friday: €520 revenue, €248 costs = €272 profit
- Saturday: €340 revenue, €165 costs = €175 profit
Best day: Friday (€272 profit)
Watch out for seasonal patterns and location effects
Your top earning day shifts with seasons and location type. Office districts peak mid-week, while entertainment zones dominate weekends.
- Office locations: Tuesday through Thursday usually best
- Entertainment districts: Friday and Saturday top performers
- Tourist spots: Weekends and holidays
- Sports parks: Saturday and Sunday
⚠️ Watch out:
Track for at least 4 weeks before making decisions. One exceptional day can throw off your entire average.
Optimize your schedule based on the numbers
Once you've identified your money-making days, restructure your entire operation around them. It's the kind of thing you only learn after closing your first month at a loss - data beats assumptions every time.
- Best days: Full menu, extra inventory
- Average days: Limited menu, less purchasing
- Slow days: Consider taking a day off or trying a different location
Many operators use tools like KitchenNmbrs to track daily performance, making it easier to spot which days and locations actually pay the bills.
💡 Example optimization:
If Monday consistently underperforms (€85 profit) with €35/day fixed costs:
- Net profit Monday: €50
- At 4 Mondays per month: €200
- Alternative: day off = €140 savings in fixed costs
Sometimes you earn more by not working.
How do you determine profitability per day? (step by step)
Record all income and expenses per day for 4 weeks
Note your revenue, ingredient costs, fuel costs, and parking fees every day. Also divide your fixed costs (insurance, depreciation) across the number of working days per month.
Calculate average profit per day of the week
Add up all Mondays and divide by the number of Mondays. Do this for each day of the week. This shows you which day generates the most on average.
Analyze the reasons for good and bad days
Look at why certain days perform better. Is it the location, the weather, events nearby? These insights help you optimize your schedule.
✨ Pro tip
Track your revenue per operating hour, not just daily totals. A 6-hour day earning €300 beats a 10-hour day at €350 because you're saving on fuel, labor, and wear-and-tear costs.
Calculate this yourself?
In the KitchenNmbrs app you can do this in just a few clicks. 7 days free, no credit card.
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Frequently asked questions
How many weeks do I need to measure before I can draw conclusions?
At least 4 weeks, but 8-12 weeks gives you better data. This eliminates random events like bad weather, holidays, or one-time occurrences that mess with your numbers.
What if my best day varies by season?
That's completely normal. Track each season separately and adapt your schedule accordingly. Office district trucks operate differently in summer when people vacation versus busy winter months.
How do I convert fixed costs to daily costs?
Divide monthly fixed expenses (insurance, depreciation, permits) by your working days per month. Working 20 days with €700 fixed costs means €35 per operating day.
What if I barely make a profit on slow days?
Consider closing those days or testing different locations. You might actually earn more by staying closed than operating with high costs and weak sales.
Should I include my own salary in the costs?
Absolutely - calculate at least €15-20 per hour for yourself. Otherwise profitable-looking days might actually pay you below minimum wage.
How do I handle days when weather kills my sales?
Track weather impact separately from your regular patterns. Rain might destroy Tuesday's numbers, but don't let one storm convince you Tuesdays are bad permanently.
📚 Sources consulted
- EU Verordening 852/2004 — Levensmiddelenhygiëne (2004) — Official source
- EU Verordening 853/2004 — Hygiënevoorschriften voor levensmiddelen van dierlijke oorsprong (2004) — Official source
- EU Verordening 1169/2011 — Voedselinformatie aan consumenten (2011) — Official source
- NVWA — Hygiënecode voor de horeca (2024) — Official source
- NVWA — Allergenen in voedsel (2024) — Official source
- Codex Alimentarius — International Food Standards (2024) — Official source
- FSA — Safer food, better business (HACCP) (2024) — Official source
- BVL — Lebensmittelhygiene (HACCP) (2024) — Official source
- Warenwetbesluit Bereiding en behandeling van levensmiddelen (2024) — Official source
- WHO — Foodborne diseases estimates (2024) — Official source
Food Standards Agency (FSA) — https://www.food.gov.uk
The HACCP standards shown in this application are for informational purposes only. KitchenNmbrs does not guarantee that displayed values are current or complete. Always consult the FSA or your local authority for the latest regulations.
Written by
Jeffrey Smit
Founder & CEO of KitchenNmbrs
Jeffrey Smit built KitchenNmbrs from 8 years of hands-on experience as kitchen manager at 1NUL8 Group in Rotterdam. His mission: give every restaurant owner control over food cost.
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