Your busiest month isn’t always your most profitable.

Busy is a feeling. Contribution is a number.

A full class and a busy front desk can feel like a healthy business. But volume only helps when the revenue it brings in exceeds the cost of delivering it.

Start with three monthly inputs: fixed costs, effective revenue per member, and variable cost per member. Effective revenue means what you actually collect after discounts and refunds—not the price on the wall.

A small example that explains a lot.

Suppose fixed costs are $12,000, revenue per member is $150, and variable costs are $30 per member. Each member contributes $120 toward the fixed costs. At 100 members, those costs are covered. At 120, the estimated operating surplus is $2,400.

More members can help. Knowing what each member contributes helps you decide how much.

This example excludes debt principal, tax, and owner distributions. It is a planning illustration, not a benchmark for what a gym should earn.

Change one thing at a time.

Try a cautious membership count. Then adjust pricing or delivery costs. Save each version so you can see which assumptions actually move the result.