for apple inc. Current Ratio: To find current ratio I would use [Current Assets / Current Liabilities]. So, [143,566 / 145, 308 = 1]. Quick Ratio: To find the quick ratio I would use [Cash + Accounts Receivable + Temporary Investment & or Marketable Securities / Current Liabilities]. So, [29,965 + 29,508 + 31,590 / 145,308 = 0.63 = 1]. These current and quick ratios would determine that there is no working capital. Gross Profit Ratio: To find the gross profit ratio I would use [Gross Profit / Net Sales] x 100. So, [169,148 / 383,285 = 0.4413 x 100 = 44.13]. Net Profit Ratio: To find the net profit ratio I would use [Net Profit / Net Sales] x 100. So, [96,995 / 383,285 = 0.2531 x 100 = 25.31]. Debt-to-Equity Ratio: To find the debt-to-equity ratio I would use [Total Liabilities / Stockholders' Equity]. So, [290,437 / 62,146 = 4.67]. Inventory Turnover Ratio: To find the inventory turnover ratio I would use [Cost of Goods Sold / Average Inventory]. So, [214,137 / 6,331 = 33.82]. Accounts Receivable Turnover Ratio: To find the accounts receivable turnover ratio I would use [Sales / Accounts Receivable]. So, [214,137 / 29,508 =