In a vertical analysis, the base for cost of goods sold is a. total expenses Ob. total selling expenses c. gross profit Od. sales Accounts payable $40,000 65,000 Accounts receivable Accrued liabilities Cash 7,000 30,000 Intangible assets 40,000 72,000 110,000 75,000 36,000 Inventory Long-term investments Long-term liabilities Marketable securities Notes payable (short-term) Property, plant, and equipment Prepaid expenses What is the amount of working capital? a. $238,000 b. $168,000 c. $128,000 d. $203,000 30,000 625,000 2,000