What was its net operating working capital?

please show your work; each step if possible on excel, hand write is okay if you do nor have access to EXCEL.

H&M balance sheet showed

total current assets of $2,250, all of which were required operations.

Its current liabilities consisted of $575 of accounts payable,$300 of 6% short term notes payable to the bank, and $145 of accruec wages and taxes.