How the significant advantage of using common size statements for comparing companies of different sizes in the same industry can be taken?

By bringing the numbers to a common base for comparison

The significant advantage of using common size statements for comparing companies of different sizes in the same industry is that they bring the financial data to a common base for comparison. When companies have different sizes, their financial figures (such as revenue, expenses, assets, and liabilities) may naturally differ due to the scale of operations. By expressing each item in the financial statement as a percentage of a common item (typically the total), common size statements standardize the data and make it possible to compare the relative proportion of each item to the whole. This standardized approach allows for a fair comparison between companies of different sizes, enabling analysts and stakeholders to evaluate how various components contribute to the overall financial structure and performance.