I just came up with this idea. In business management, it is very important to understand one thing: distinguishing our costs. It's not just about knowing how much money we spend, but also understanding where that money goes and how it changes according to the situation.

The first thing to understand is fixed costs. These are expenses that remain the same every month, regardless of whether we sell more or less products. For example, office rent, employee salaries, insurance, building and equipment costs, or even loan interest. All of these must be paid continuously whether the business has income or not.

On the other hand, variable costs are costs that change directly with the level of production or sales. The more we produce, the higher these costs; the less we produce, the lower they are. Examples include raw materials, direct labor, energy costs, packaging, or transportation. All of these depend on how much we produce or sell.

Why do we need to distinguish between variable costs and fixed costs? Because it affects decisions about product pricing, production planning, and estimating how much we need to sell to break even.

Another concept to know is combining both costs into one, called Mixed Cost Analysis. This helps us see the overall picture of total costs and make better decisions. For example, if direct labor costs are very high, the company might decide to invest in machinery to reduce variable costs in the long run, even if it increases fixed costs.

What we must remember is that fixed costs help us plan steadily because they do not change, while variable costs offer more flexibility because they can be adjusted according to demand. Both play a role in shaping the cost structure of a business and affect competitiveness and financial stability.

If you understand this well, you will be able to set appropriate product prices, plan production more effectively, and make smarter investment decisions.