A common size financial statement shows the items as a percentage of a common figure, total sales revenue, etc. This type of statement permits easy analysis and interpretation between companies, or even between periods, for the same company. Common size statements are generally prepared for the income and expenditure account and balance sheet. To calculate common-size percentages the steps will be dividing the Amount by the base Amount and the result is then multiplied by 100 to get a percentage. The entries are displayed as a percentage of a common base figure that is numerical figures. On the balance sheet, the base will be total assets and on the income statement, the base will be net sales in a common-size statement.