A firm reported a profit based on absorption costing of 10,000. The opening stock of goods were 15,000 , and the closing stock was 17,000 . The full cost per unit was 12.50, made up of overheads of 0.5. Determine the profit based on marginal costing. Hint: Use SIAM a. 11,000 b. 9,000 c. E10,000 d. E12,000