Answer:
Total Sales
Step-by-step explanation:
Vertical analysis is a financial statement analysis in which all the line items of any financial statements (income statement or balance sheet) are enlisted as a percentage of one main item. For income statement, the main item is total sales as the item starts with the total sales while for balance sheet, the main item is total assets as the summation of current and non-current assets conclude the total asset. Therefore, we need to give 100% for total sales if we analyse the ratio vertically.