Listed below are year-end account balances ($ in millions) taken from the records of Symphony Stores. Debit Credit Accounts receivable 671 Building and equipment 938 Cash 58 Interest receivable 44 Inventory 16 Land 152 Notes receivable (long-term) 497 Prepaid rent 33 Supplies 12 Trademark 56 Accounts payable 631 Accumulated depreciation 78 Additional paid-in capital 484 Dividends payable 21 Common stock (at par) 11 Income tax payable 59 Notes payable (long-term) 880 Retained earnings 292 Deferred revenue 21 TOTALS 2,477 2,477 What is the amount of working capital for Symphony