I just realized that cost-related matters in business are extremely important. It’s not just about counting money—it’s a key factor in all business decisions. Today, I’d like to share knowledge about fixed costs and variable costs, because it really helps you understand business more deeply.

Let’s start with **fixed costs (Fixed Cost)**. These are expenses that a business has to pay no matter whether it sells more or sells less. For example, office rent, employee salaries, insurance, or loan interest. These expenses stay the same no matter how much you sell this month. They’re obligations that need to be settled.

What’s interesting is that once you understand **fixed costs**, the calculation formula isn’t as complicated as you might think. Simply total up all expenses that don’t change, and you’ll get the amount that needs to be covered in the selling price. This is very important for pricing products—because the selling price must cover these fixed costs first, and then you can factor in profit.

Next is **variable costs (Variable Cost)**, which is the opposite of fixed costs. It changes according to the volume of production or sales. The more you produce, the higher these costs are; the less you produce, the lower they are. For example, costs of raw materials, direct labor, packaging, transportation, or sales commissions—all of these depend on how much you sell.

In fact, understanding the difference between these two types helps businesses plan better. For example, if fixed costs are very high, you may need to figure out how much you have to sell to break even. And if variable costs are high, you may need to find ways to reduce production expenses.

Analyzing **mixed costs** (including both fixed and variable costs) helps businesses see a complete picture of their total costs. With this approach, you can set appropriate prices, plan production, make investment decisions, or even evaluate how changes in the market will affect profits.

When you think about it, managing costs well is the same as managing a business well—whether it’s keeping fixed costs from being too high or finding ways to reduce variable costs. All of this is to ensure the business can compete well and maintain long-term financial stability.