The math of running a profitable school

Running a profitable school is mostly math. Here are the numbers that matter and how to think about them.

The basic equation

Profit = (Members x Average tuition) minus (Fixed costs + Variable costs)

Sounds obvious. The interesting part is what each number is for a typical school.

Members

A typical school has 80 to 250 members. Below 80, you are usually not breaking even unless you teach alone with no rent. Above 250, you need more than one instructor or location.

The growth rate that matters is net members per month (new minus lost). A healthy school is at +5 to +10 net per month. A growing school is +15. A struggling school is 0 or negative.

Average tuition

Tuition varies by region and vertical. A typical range:

• Suburban martial arts: 130 to 200 per month.
• Urban or affluent suburb: 180 to 300 per month.
• Gymnastics or competitive: 150 to 350 per month.
• Dance: 80 to 200 per month (varies hugely by city).

Multiply members x tuition for monthly revenue. A 150-member school at 175 average is 26,250 per month or 315,000 per year.

Fixed costs

The major fixed costs each month:

• Rent. Anywhere from 2,000 to 12,000 depending on location and size.
• Salaries. Head instructor, front desk, owner draws.
• Insurance. General liability plus participant liability. Typically 200 to 500 per month.
• Software (Rosterra plus extras). Usually 60 to 200 per month.
• Utilities. Often 300 to 700 per month.

For a typical school, fixed costs run 8,000 to 18,000 per month.

Variable costs

Variable costs scale with members:

• Payment processing. Stripe takes around 3 percent. So a 150-member school paying 26,250 gives Stripe about 790 per month.
• Marketing. Most schools spend 5 to 15 percent of revenue on marketing.
• Events and treats. Belt graduations, summer camps, family events. Usually 1 to 3 percent of revenue.

For a 150-member, 26,250 per month school, variable costs are roughly 2,500 to 5,500 per month.

Profit margin

Healthy schools run at 25 to 40 percent profit margins. That means if you bring in 26,000 per month, you net 6,500 to 10,500 before owner pay, or after if the owner is salaried.

If you are below 20 percent, something is wrong. Most often:

• Rent is too high relative to revenue.
• Staff costs are too high relative to revenue.
• Member churn is eating new signups.

The most important ratio: revenue per square foot

This number tells you whether your space is right-sized:

Revenue per square foot per year = Annual revenue / Square footage of your space.

• Below 100 dollars per square foot per year: you are paying for unused space.
• 100 to 250: typical, room to grow.
• 250 to 400: healthy.
• Above 400: time to expand or split into two locations.

A 3,000 square foot school doing 26,000 per month is at 100 per square foot per year. Room to grow.

The most important number for growth: retention

Retention is what share of members you keep month over month. A 95 percent monthly retention rate means you lose 5 percent of members per month. Sounds small. Over a year, that is more than 40 percent attrition.

Most schools sit between 92 percent and 97 percent monthly retention. The difference between 93 percent and 96 percent retention is the difference between growing and shrinking.

To improve retention:

• Focus on visible progression (see the progression mindset article).
• Run a regular at-risk-member review (see the reports article).
• Pause before canceling (see the difficult-conversations article).

What changes when you cross 200 members

At about 200 members, the school crosses an inflection point:

• You can no longer remember every family.
• You need a second instructor or risk burning out.
• You can charge slightly more if you are quality-driven.
• You can negotiate better rent terms because you are a more stable business.

Most schools either plateau here or grow to 300 to 500 members at a second location.

What changes when you cross 300 members

At 300 members:

• You need a full-time admin or office manager.
• You can specialize the team (one person on billing, another on lead follow-up).
• The owner can step back from teaching if they want.

What changes when you open a second location

A second location doubles your fixed costs but does not double your revenue immediately. Plan for the second location to break even at 80 to 100 members, which takes 6 to 12 months.

Two locations of 150 members are usually less profitable per location than one location of 250 members. The reason is fixed-cost duplication (rent, insurance, software).

Open the second location only if your first is full and you have a real reason to expand (different neighborhood, different vertical, second city).

A simple monthly habit

Once a month, look at three numbers in Rosterra:

• Active members at /students.
• Net change for the month (new enrollments minus cancellations).
• Revenue at /reports/revenue.

Write these three numbers down somewhere (a notebook, a spreadsheet, a whiteboard). After 12 months, you can see your trajectory at a glance.