What are fixed costs in a restaurant?

Fixed costs are what you must pay every month — rent, staff salaries, utilities, and depreciation of renovation and equipment.

What is safety margin in restaurant finance?

Safety margin is the difference between your projected sales and your breakeven sales. It acts as a buffer against unexpected problems like new competitors, road construction, or ingredient price spikes.

What is the minimum safety margin you should have?

Your safety margin should be at least 20 percent.

How can you improve your safety margin?

Reduce fixed costs — lower rent, negotiate, hire fewer staff, and lower your initial investment. Less renovation cost means lower monthly depreciation.

The One Number That Predicts Restaurant Failure (Before You Open)

The One Number That Predicts Restaurant Failure (Before You Open)

Published: 11th June 2026

Video

In this video, we answer:

What is the one financial measurement that can reduce failure risk by 90%?
What is the breakeven sales formula?
What are fixed costs in a restaurant business?
How do you calculate monthly depreciation?
How do you calculate breakeven sales using an example?
What is safety margin and why does it matter?
Why is a $30,000 safety margin too thin?
What is the minimum safety margin you should have?
How can you improve your safety margin?
How much does breakeven sales drop for every $8,000 reduction in fixed costs?
What should you do if your safety margin is not wide enough?

Key takeaways

The hook: If you are thinking or planning to open your first restaurant or café, you need to hear this. If you master this one financial measurement, your risk of failure will drop by at least 90 percent. What is it? Breakeven sales. Let me show you why.
The formula: The formula is simple. Breakeven sales equals fixed costs divided by gross profit margin percentage. Fixed costs are what you must pay every month — good month or bad month. Rent, staff salaries, utilities, and depreciation of your renovation and equipment.
The example: Here is an example. Rent $45,000. Staff Cost $54,000. Depreciation $33,000 per month. Total fixed costs? $132,000. Gross profit margin at 60%. Breakeven sales? $220,000. That means if your monthly sales are below $220,000, you are losing money. Above $220,000? That is your profit.
Safety margin explained: But knowing breakeven is not enough. You must know your safety margin. Case one: you project sales of $250,000. Breakeven is $220,000. Your safety margin is only $30,000. That is too thin. What if a competitor opens next door? What if there is road construction? What if ingredient prices spike? Any small change will wipe out your buffer. That is gambling, not calculated risk.
The safe rule: Case two: you reduce fixed costs. Lower rent. Lower depreciation. Your breakeven drops to $150,000. Same projected sales of $250,000. Now your safety margin is $100,000. That is acceptable. Here is the rule. Your safety margin should be at least 20%. Hold this rule, and you will have a higher chance of success.
How to improve safety margin: How do you improve the safety margin? You cannot easily change gross profit margin. Fast food is 55%. Hot pot can be 70%. But you can reduce fixed costs. Lower rent. Negotiate. Hire fewer staff. Most importantly, lower your initial investment. Lower renovation cost means lower monthly depreciation. For every $8,000 you reduce in fixed costs, your breakeven sales drop by $13,000 per month. That is $156,000 per year, less risk.
Final warning: If your safety margin is not wide enough, renegotiate. Reduce fixed costs. If you cannot, walk away. Find another location. Do not bet on luck. Opening a profitable restaurant is a system, not a gamble. Check your numbers before you sign that lease. Stay smart. Stay profitable.

Full transcript

Voice specification: Male, deep, confident, American accent. Speak clearly, not rushed. Pause briefly at each [PAUSE].

[0:00-0:08] – Hook

Visual: Text on screen – “One number. 90% less risk.” Then show a calculator and a restaurant lease document.

Voice:
“If you are thinking or planning to open your first restaurant or café, you need to hear this. If you master this one financial measurement, your risk of failure will drop by at least 90 percent. What is it? Breakeven sales. Let me show you why. [PAUSE]”

[0:08-0:20] – The Formula

Visual: Formula appears: Breakeven Sales = Fixed Costs ÷ Gross Profit Margin (%)

Voice:
“The formula is simple. Breakeven sales equals fixed costs divided by gross profit margin percentage. Fixed costs are what you must pay every month — good month or bad month. Rent, staff salaries, utilities, and depreciation of your renovation and equipment. [PAUSE]”

[0:20-0:32] – The Example

Visual: Numbers appear: Rent $45k + Staff $54k + Depreciation $33k = $132k fixed costs. Then: $132k ÷ 60% = $220k.

Voice:
“Here is an example. Rent $45,000. Staff Cost $54,000. Depreciation $33,000 per month. Total fixed costs? $132,000. Gross profit margin at 60%. Breakeven sales? $220,000 dollars. That means if your monthly sales are below $220,000, you are losing money. Above $220,000? That is your profit. [PAUSE]”

[0:32-0:48] – Safety Margin Explained

Visual: Two scenarios – Case 1 (thin margin) in red, Case 2 (safe margin) in green. Text: “$30k buffer = DANGER | $100k buffer = SAFE”

Voice:
“But knowing breakeven is not enough. You must know your safety margin. Case one: you project sales of $250,000. Breakeven is $220,000. Your safety margin is only $30,000. That is too thin. What if a competitor opens next door? What if there is road construction? What if ingredient prices spike? Any small change will wipe out your buffer. That is gambling, not calculated risk. [PAUSE]”

[0:48-1:00] – The Safe Rule

Visual: Text on screen – “Minimum safety margin: 20%”

Voice:
“Case two: you reduce fixed costs. Lower rent. Lower depreciation. Your breakeven drops to $150,000. Same projected sales of $250,000. Now your safety margin is $100,000. That is acceptable. Here is the rule. Your safety margin should be at least 20%. Hold this rule, and you will have a higher chance of success. [PAUSE]”

[1:00-1:12] – How to Improve Safety Margin

Visual: Arrows pointing down on rent, staff, and initial investment. Then show calculation: $8k reduction ÷ 60% = $13k lower breakeven per month.

Voice:
“How do you improve the safety margin? You cannot easily change gross profit margin. Fast food is 55%. Hot pot can be 70%. But you can reduce fixed costs. Lower rent. Negotiate. Hire fewer staff. Most importantly, lower your initial investment. Less renovation cost means lower monthly depreciation. For every $8,000 you reduce in fixed costs, your breakeven sales drop by $13,000 per month. That is $156,000 per year less risk. [PAUSE]”

[1:12-1:22] – Final Warning

Visual: Host looks directly at camera. Text on screen: “Do NOT sign until safety margin is wide enough.”

Voice:
“If your safety margin is not wide enough, renegotiate. Reduce fixed costs. If you cannot, walk away. Find another location. Do not bet on luck. Opening a profitable restaurant is a system, not a gamble. Check your numbers before you sign that lease. Stay smart. Stay profitable.”

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