Analyze the incorrect options: For example, 'Net Sales = Gross Sales + Sales Returns and Allowances' is incorrect because returns and allowances reduce revenue, not increase it. Similarly, 'Net Sales = Gross Sales - Operating Expenses' is incorrect because operating expenses are not part of the Net Sales calculation. Lastly, 'Net Sales = Gross Sales + Cost of Goods Sold' is incorrect because Cost of Goods Sold is subtracted later in the income statement to calculate Gross Profit, not Net Sales.