What is Fixed cost?

A cost incurred in a constant amount each period regardless of production volume or sales, such as depreciation of equipment and buildings, rent and the salaries of permanent employees.

Japanese name: 固定費

Fixed cost appears in 10 practice questions across 2 topics, including Business Strategy and Accounting Basics, Semiconductor industry and market.

Field: Business Strategy and Accounting Basics

Try it: questions about Fixed cost

A company has sales of ¥50 million, variable costs of ¥20 million and fixed costs of ¥24 million. Which is its break-even sales?

  1. A¥40 million
  2. B¥44 million
  3. C¥60 million
Show answer and explanation

Answer: A. ¥40 million

The variable cost ratio is 20 ÷ 50 = 0.4, so the contribution margin ratio, the part of sales available to cover fixed costs, is 1 − 0.4 = 0.6. Break-even sales are the sales at which the contribution margin exactly covers the fixed costs, so 24 ÷ 0.6 = ¥40 million. The current sales of ¥50 million are above the break-even point, and the profit is 50 − 20 − 24 = ¥6 million.

Which is the margin of safety ratio of a company with sales of ¥200 million, a variable cost ratio of 70% and fixed costs of ¥45 million?

  1. A25%
  2. Babout 33%
  3. C75%
Show answer and explanation

Answer: A. 25%

The contribution margin ratio is 1 − 0.7 = 0.3, so break-even sales are 45 ÷ 0.3 = ¥150 million. The margin of safety ratio expresses how far current sales exceed the break-even point as a share of sales: (200 − 150) ÷ 200 = 25%. It means the company does not fall into a loss until sales drop by 25%, and the larger it is, the more resistant the company is to falling sales. Break-even sales ÷ sales = 75% is the break-even ratio, and the two add up to 100%.

Fixed cost in the explanations

Questions that mention Fixed cost (10)

  1. A company has sales of ¥50 million, variable costs of ¥20 million and fixed costs of ¥24 million. Which is its break-even sales?
  2. Which is the margin of safety ratio of a company with sales of ¥200 million, a variable cost ratio of 70% and fixed costs of ¥45 million?
  3. In a business with fixed costs of ¥30 million and a variable cost ratio of 60%, which is the sales needed to make a profit of ¥10 million?
  4. A semiconductor manufacturer is developing a dedicated chip. The selling price per chip is ¥4,000, the variable cost per chip (wafer, package, test and so on) is ¥2,400, and the fixed costs such as mask making and design are ¥800 million. Which is the break-even sales volume?
  5. A business has fixed costs of ¥27 million and a variable cost ratio of 40%, and has no costs other than variable and fixed costs. Which is the sales needed to achieve an operating profit margin (operating profit ÷ sales) of 15%?
  6. There are two ways to make a product: plan A (fixed costs ¥10 million, variable cost ratio 60%) and plan B, which automates the production line (fixed costs ¥16 million, variable cost ratio 45%). Above a certain level of sales, plan B earns more profit than plan A. Which is that level?
  7. At a fab, the monthly number of wafer starts x (thousand wafers) and electricity cost y (¥ million) were (x, y) = (2, 5), (4, 9), (6, 11) and (8, 15). If the regression line y = ax + b is found by the least squares method and the slope a is taken as the variable cost per thousand wafers and the intercept b as the fixed cost, which combination is correct?
  8. Fabs place particular emphasis on keeping tool utilization high. Which is an appropriate reason?
  9. Among the costs of a semiconductor fab, which is generally classified as a variable cost?
  10. Compared with an IDM (integrated device manufacturer), which manufactures in its own fabs, which is a typical characteristic of a fabless company?

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Related terms

Variable cost Contribution margin Break-even point Depreciation Correlation coefficient Photoresist IDM (integrated device manufacturer) Fabless Foundry ABC analysis

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