Fixed vs Variable Costs: Where Is Your Money Going?

Understand Your Business Costs, Protect Your Profit Margins, and Make Better Pricing Decisions

Your Sales Are Growing. But So Are Your Expenses.

You've worked hard to attract customers, increase orders, and grow your revenue.

Yet somehow, your expenses keep climbing.

You spend more on materials, packaging, delivery, staff, and day-to-day operations. At the end of the month, you're left wondering:

Where is all the money going?

The problem isn't always that you're spending too much. Sometimes, it's that you don't clearly understand how your costs behave as your business changes.

Some expenses stay relatively stable. Others rise with every additional sale. And some contain a combination of both.

Understanding these differences can help you identify what is putting pressure on your profit margins, evaluate pricing decisions, and plan business growth more carefully.

1. Why Understanding Your Costs Matters

Knowing how much you spend is useful.

But knowing why your costs change is what helps you make better decisions.

Imagine your monthly revenue increases by 20%.

Does that mean your costs will also increase by 20%?

Not necessarily.

Some expenses may remain unchanged. Others may increase with production or sales volume. Certain costs may rise only after your business reaches a new level of activity.

That's why separating fixed, variable, and mixed costs is an important part of understanding business profitability.

2. What Are Fixed Costs?

Fixed costs generally remain the same within a relevant operating range, even when your sales volume changes.

Examples include:

For example, if your monthly rent is $1,500, you generally pay that amount whether you sell 200 or 500 products.

However, fixed costs aren't permanently fixed. Expanding into a larger space or hiring additional salaried employees may increase them.

3. What Are Variable Costs?

Variable costs change with the level of production or sales activity.

Examples include:

Suppose your packaging costs $2 per product.

Selling 100 products creates $200 in packaging costs. Selling 300 products creates $600.

The cost per product stays the same, but total packaging costs increase with sales volume.

4. What Are Mixed Costs?

Mixed costs contain both fixed and variable components.

Examples may include:

Mixed costs can be particularly important because their total amount may change without being directly proportional to sales: