The following data (in thousands of dollars) have been taken from the accounting records of Karlana Corporation for the just completed year. Sales........ $910 Raw materials inventory, beginning. $80 Raw materials inventory, ending. $20 Purchases of raw materials. $100 Direct labor.......... $130 Manufacturing overhead.. $200 Administrative expenses... $160 Selling expenses... $140 Work in process inventory, beginning...... $40 Work in process inventory, ending. $10 Finished goods inventory, beginning.... $130 Finished goods inventory, ending. $150 The cost of goods sold for the year (in thousands of dollars) was: $670 $500 $540 $650