Answer:
The most commonly used base item for a common size balance sheet is:
Total assets.
Step-by-step explanation:
The use of the total assets as an analytical base is because they are always equal to the two sides of the balance sheet in accordance with the accounting equation. This equation states that the Assets = Liabilities and Shareholders' Equity. A company can gain proper and good understanding of its performance by performing some financial analyses. Examples include comparative analysis (external-focused), trend analysis (internal-focused), and common size analysis (financial statement-focused).