Lesson
Learn how to convert financial statement figures into percentages so companies can be compared easily.
Understand base amount, percentage calculation, common size Profit and Loss, common size Balance Sheet, and simple interpretation.
Concept explanation
Common size statements convert financial statement figures into percentages.
Normal statements show rupee amounts.
Common size statements show each item as a percentage of a base amount.
Example: sales are Rs.5,00,000 and rent is Rs.50,000.
Rent as percentage of sales = Rs.50,000 / Rs.5,00,000 x 100 = 10%.
Now we understand that rent is 10% of sales.
Simple line: Common size statements help us understand the size of each item compared to the total.
Common size statements make comparison easier.
They show which expenses are too high.
They help compare small and large companies.
They show how assets are distributed.
They show how much money comes from owners and how much from loans.
They help us understand financial statements more clearly.
Simple line: Common size statements convert rupees into percentages for easier analysis.
Riya wants to compare two companies.
Company A has sales Rs.5,00,000 and profit Rs.1,00,000.
Company B has sales Rs.20,00,000 and profit Rs.3,00,000.
At first, Company B looks better because profit is higher.
But Riya calculates profit percentage.
Company A profit percentage = Rs.1,00,000 / Rs.5,00,000 x 100 = 20%.
Company B profit percentage = Rs.3,00,000 / Rs.20,00,000 x 100 = 15%.
Now Riya understands that Company B earns more rupees, but Company A earns better profit percentage.
Simple line: Percentages help us compare companies fairly.
Comparative statements compare two years.
Common size statements convert figures into percentages.
Comparative statements show increase or decrease.
Common size statements show proportion or percentage.
Example of comparative statement: sales increased by Rs.1,00,000.
Example of common size statement: rent is 10% of sales.
Memory line: Comparative = change over time. Common size = percentage of total.
Base amount is the total amount used for calculating percentages.
In a common size Statement of Profit and Loss, Revenue from Operations or sales is usually taken as 100%.
In a common size Balance Sheet, Total Assets or Total Equity and Liabilities is taken as 100%.
Example: sales Rs.5,00,000. Sales is the base and is treated as 100%.
Rent Rs.50,000. Rent percentage = Rs.50,000 / Rs.5,00,000 x 100 = 10%.
Simple line: Base amount is the number we compare every item with.
In a common size Statement of Profit and Loss, each item is shown as a percentage of sales or revenue.
Sales Rs.5,00,000 is taken as 100%.
Purchases or cost Rs.3,00,000 means Rs.3,00,000 / Rs.5,00,000 x 100 = 60%.
Salary Rs.50,000 means Rs.50,000 / Rs.5,00,000 x 100 = 10%.
Profit Rs.1,00,000 means Rs.1,00,000 / Rs.5,00,000 x 100 = 20%.
Simple interpretation: for every Rs.100 of sales, the company earns Rs.20 profit.
Simple line: Common size P&L shows income and expenses as percentage of sales.
In a common size Balance Sheet, each item is shown as a percentage of total assets or total equity and liabilities.
Total assets Rs.10,00,000 is taken as 100%.
Machines Rs.4,00,000 means Rs.4,00,000 / Rs.10,00,000 x 100 = 40%.
Inventory Rs.2,00,000 means Rs.2,00,000 / Rs.10,00,000 x 100 = 20%.
Cash Rs.1,00,000 means Rs.1,00,000 / Rs.10,00,000 x 100 = 10%.
Simple interpretation: 40% of the company's assets are invested in machines.
Simple line: Common size Balance Sheet shows each asset or liability as percentage of total.
Rule: Percentage = Item Amount / Base Amount x 100
First choose the correct base amount.
Then divide the item amount by the base amount.
Then multiply by 100.
Example: advertising expense Rs.25,000 and sales Rs.5,00,000.
Advertising percentage = Rs.25,000 / Rs.5,00,000 x 100 = 5%.
Simple line: Divide the item by the base amount and multiply by 100.
After calculating percentages, ask which expense takes the largest part of sales.
Ask whether profit percentage is increasing or decreasing.
Ask whether too much money is blocked in inventory.
Ask whether cash percentage is too low.
Ask whether loan percentage is too high.
Ask whether assets are balanced properly.
Ask whether one company is better than another company in percentage terms.
Simple line: The calculation gives percentage. Interpretation gives understanding.
Company A has sales Rs.5,00,000 and profit Rs.1,00,000.
Company B has sales Rs.50,00,000 and profit Rs.5,00,000.
Company B has higher profit in rupees.
But Company A profit percentage = Rs.1,00,000 / Rs.5,00,000 x 100 = 20%.
Company B profit percentage = Rs.5,00,000 / Rs.50,00,000 x 100 = 10%.
Company B is bigger, but Company A is more profitable in percentage terms.
Simple line: Common size statements help compare companies of different sizes.
A simple common size Statement of Profit and Loss can show Particulars, Amount, and Percentage of Sales.
Rows can include Sales, Cost of Goods Sold, Salary, Rent, Other Expenses, and Profit.
A simple common size Balance Sheet can show Particulars, Amount, and Percentage of Total Assets or Total Funds.
Rows can include Shareholders' Funds, Long-term Loans, Current Liabilities, Fixed Assets, Inventory, Debtors, and Cash and Bank.
This is a simplified learning format.
Real statements may have more details.
Easy memory table
| Principle / Concept | Simple Meaning | Easy Example |
|---|---|---|
| Common Size Statement | Statement in percentages | Rent is 10% of sales |
| Base Amount | Total used for comparison | Sales or total assets |
| Sales as Base | Sales taken as 100% | P&L statement |
| Total Assets as Base | Assets taken as 100% | Balance Sheet |
| Expense Percentage | Expense / Sales x 100 | Salary 8% of sales |
| Asset Percentage | Asset / Total Assets x 100 | Inventory 25% |
| Interpretation | Meaning of percentage | Profit margin is strong |
Simple comparison
| Comparative Statements | Common Size Statements |
|---|---|
| Compare two years | Convert figures into percentages |
| Shows increase or decrease | Shows proportion or percentage |
| Useful for trend | Useful for size and structure |
| Example: Sales increased by Rs.1,00,000 | Example: Rent is 10% of sales |
| Focuses on change | Focuses on relationship with total |
Memory line: Comparative = change over time. Common size = percentage of total.
Simple comparison
| Common Size Statement of Profit and Loss | Common Size Balance Sheet |
|---|---|
| Particulars | Amount | Percentage of Sales | Particulars | Amount | Percentage of Total Assets / Total Funds |
| Sales, Cost of Goods Sold, Salary | Shareholders' Funds, Long-term Loans, Current Liabilities |
| Rent, Other Expenses, Profit | Fixed Assets, Inventory, Debtors, Cash and Bank |
| Sales or Revenue from Operations is usually 100% | Total Assets or Total Equity and Liabilities is usually 100% |
This is a simplified learning format. Real statements may have more details.
Common size guide
| Percentage | Simple meaning | What to check next |
|---|---|---|
| Rent is 10% of sales | For every Rs.100 sales, Rs.10 goes to rent | Check whether rent is reasonable |
| Profit is 20% of sales | For every Rs.100 sales, Rs.20 remains as profit | Compare with another company or another year |
| Inventory is 25% of assets | One-fourth of assets are in stock | Check whether stock is too high or moving slowly |
| Cash is 5% of assets | Only a small part of assets is cash | Check liquidity and payment ability |
| Loan is 50% of total funds | Half of funds come from borrowing | Check debt risk and interest burden |
| Machines are 40% of assets | Large investment is in machines | Check whether machines help generate sales |
Good common size analysis means reading the percentage and asking what it tells us.
Visual flow
Take financial statement figures
Choose base amount
Treat base as 100%
Divide each item by base
Multiply by 100
Compare percentages
Understand structure and performance
Solved examples
Example 1
Rent percentage = Rs.50,000 / Rs.5,00,000 x 100 Rent percentage = 10% Interpretation: Rent is 10% of sales.
Sales is the base amount for Profit and Loss items.
Rent is compared with sales.
Example 2
Profit percentage = Rs.1,60,000 / Rs.8,00,000 x 100 Profit percentage = 20% Interpretation: For every Rs.100 sales, company earns Rs.20 profit.
Profit is compared with sales.
This helps understand earning strength.
Example 3
Inventory percentage = Rs.2,50,000 / Rs.10,00,000 x 100 Inventory percentage = 25% Interpretation: 25% of assets are in inventory.
Total assets are the base for asset items.
Inventory percentage shows how much money is blocked in stock.
Example 4
Cash percentage = Rs.50,000 / Rs.10,00,000 x 100 Cash percentage = 5% Interpretation: Only 5% of assets are cash. Cash position may need checking.
Cash is compared with total assets.
Very low cash can become a liquidity concern.
Example 5
Loan percentage = Rs.6,00,000 / Rs.12,00,000 x 100 Loan percentage = 50% Interpretation: Half of the company's funds come from loan. This may be risky.
Loan is compared with total funds.
A high loan percentage can increase financial risk.
Example 6
Company A profit percentage = 20% Company B profit percentage = 12% Interpretation: Company A is more profitable compared to sales.
Percentage comparison is fairer than only rupee comparison.
A smaller company can have a better profit percentage.
Avoid these
Practice prompts
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After learning percentages through common size statements, the next step is to understand accounting ratios.
Continue to Accounting Ratios