Swinnerton Clothing Company's balance sheet showed total current assets of $3,300, all of which were required in operations. Its current liabilities consisted of $575 of accounts payable, $300 of 6% short-term notes payable to the bank, and $145 of accrued wages and taxes. What was its net operating working capital that was financed by investors? Select the correct answer. a. $2,573 b. $2,570 c. $2,580 d. $2,577 e. $2,566