The difference between a company's current assets and its current liabilities is known as working capital. Current assets are assets that can be easily converted into cash within a year, such as cash, inventory, and accounts receivable. Current liabilities are obligations that must be paid within a year, such as accounts payable, taxes payable, and short-term loans.
Working capital is an important measure of a company's short-term liquidity and its ability to meet its current obligations. If a company has more current assets than current liabilities, it has a positive working capital, which indicates that it has sufficient resources to cover its short-term obligations. On the other hand, if a company has more current liabilities than current assets, it has a negative working capital, which indicates that it may face difficulties in meeting its short-term obligations.
Therefore, the correct answer is "working capital". Options 1 is the correct answer. Options 2, 3, and 4 are incorrect as they do not accurately describe the calculation or concept of working capital.