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What is Fixed Cost?
Grade Level:
Class 12
AI/ML, Physics, Biotechnology, FinTech, EVs, Space Technology, Climate Science, Blockchain, Medicine, Engineering, Law, Economics
Definition
What is it?
Fixed costs are expenses that do not change, no matter how much production or sales a business has. These costs remain constant even if a company produces zero units or a very high number of units.
Simple Example
Quick Example
Imagine you rent a small shop in your neighbourhood for Rs. 5,000 per month. This rent is a fixed cost. Whether you sell 10 samosas a day or 100 samosas a day, you still have to pay Rs. 5,000 for the shop rent.
Worked Example
Step-by-Step
Let's say a small tiffin service business has the following expenses for a month:
1. Rent for the kitchen space: Rs. 8,000
2. Salary for the chef (fixed monthly salary): Rs. 15,000
3. Electricity bill (fixed monthly charge, ignoring usage for simplicity): Rs. 1,000
4. Cost of vegetables, spices, oil (changes with number of tiffins): Rs. 10,000
5. Delivery charges (changes with number of tiffins): Rs. 5,000
Step 1: Identify expenses that do not change with the number of tiffins made.
---Step 2: Rent for the kitchen space (Rs. 8,000) remains the same whether 10 tiffins or 100 tiffins are made.
---Step 3: Chef's fixed monthly salary (Rs. 15,000) is paid regardless of how many tiffins are prepared.
---Step 4: Fixed electricity charge (Rs. 1,000) is a base amount paid every month.
---Step 5: The cost of vegetables, spices, oil, and delivery charges will change based on how many tiffins are sold, so these are NOT fixed costs.
---Step 6: Add up the identified fixed costs: Rs. 8,000 (Rent) + Rs. 15,000 (Salary) + Rs. 1,000 (Electricity).
---Answer: The total fixed cost for the tiffin service business for the month is Rs. 24,000.
Why It Matters
Understanding fixed costs is crucial for businesses to plan and make smart decisions. Entrepreneurs in FinTech, EV manufacturing, or even running a local startup use this concept to calculate profit and decide pricing. It helps engineers in Space Technology plan project budgets and for doctors running clinics to manage their monthly expenses effectively.
Common Mistakes
MISTAKE: Thinking fixed costs are always the same amount of money | CORRECTION: Fixed costs are fixed for a certain period or range of production, but can change over the long term (e.g., rent might increase next year).
MISTAKE: Confusing fixed costs with total costs | CORRECTION: Total cost is the sum of fixed costs AND variable costs. Fixed costs are only one part of the total cost.
MISTAKE: Believing fixed costs exist only for big companies | CORRECTION: Even a small home-based business, like making handmade crafts, has fixed costs like the rent for the room or the internet bill used for online sales.
Practice Questions
Try It Yourself
QUESTION: A small roadside chai stall pays Rs. 2,000 per month for the space it occupies. This month, it sold 500 cups of chai. Next month, it expects to sell 700 cups. What will be its fixed cost for the space next month? | ANSWER: Rs. 2,000
QUESTION: A student starts a tutoring service from home. Their monthly expenses are: Laptop EMI (fixed) - Rs. 3,000, Internet bill (fixed) - Rs. 800, Cost of stationery (changes with students) - Rs. 500. What is their total fixed cost for the month? | ANSWER: Rs. 3,800
QUESTION: A small app development company has a monthly office rent of Rs. 25,000 and pays its two developers a fixed salary of Rs. 40,000 each. Other costs like electricity and internet combined are Rs. 5,000. If they complete 3 projects this month, what are their total fixed costs? What if they complete 5 projects? | ANSWER: Total fixed costs remain Rs. 1,10,000 (25,000 + 40,000 + 40,000 + 5,000) whether they complete 3 or 5 projects.
MCQ
Quick Quiz
Which of the following is an example of a fixed cost for a school?
Cost of textbooks purchased for students
Salaries of permanent teachers
Electricity bill that changes with AC usage
Cost of chalk and markers
The Correct Answer Is:
B
Salaries of permanent teachers are paid monthly regardless of how many students are enrolled or how many classes are held, making it a fixed cost. Other options like textbooks, electricity (usage-based), and stationery change with student numbers or usage.
Real World Connection
In the Real World
When a company like Zomato or Swiggy expands, they have fixed costs like the rent for their central office or the salaries of their core management team. These costs don't directly change if they deliver 10,000 orders or 50,000 orders in a day. Understanding fixed costs helps these companies set their commission rates and plan for profitability across different cities.
Key Vocabulary
Key Terms
EXPENSES: Money spent by a business | PRODUCTION: The process of making goods or services | SALES: The amount of goods or services sold | VARIABLE COSTS: Costs that change with the level of production | PROFITABILITY: The ability of a business to make a profit
What's Next
What to Learn Next
Great job learning about fixed costs! Now, you should explore 'Variable Costs.' Understanding variable costs will help you see the complete picture of how businesses manage their expenses and calculate their total costs for production.


