Amaz-a-nation reported the following data for the year just ended: sales revenue, $1,820,000; cost of goods sold, $920,000; cost of goods manufactured, $566,000; and selling and administrative expenses, $173,000. Amaz-a-nation's gross margin would be: a. $1,073,000 b. $1,254,000 c. $1,081,000. d. $507000. e. $900,000.