Final answer:
To calculate the gross profit, subtract the cost of goods sold from the sales revenue.
Step-by-step explanation:
To calculate the gross profit for the year, we need to subtract the cost of goods sold from the sales revenue. The cost of goods sold can be calculated by finding the difference between the beginning inventory and the ending inventory, and then adding the purchases made during the year. In this case, the cost of goods sold would be:
(Beginning Inventory + Purchases) - Ending Inventory = (12,000 + 140,000) - 18,000 = 134,000.
Gross profit is the difference between sales revenue and the cost of goods sold. Therefore, the gross profit for the year would be:
Sales Revenue - Cost of Goods Sold = 300,000 - 134,000 = 166,000.
So, the correct answer is (a) $166,000.