You are evaluating the balance sheet for BTO Corporation. From the balance sheet you find the following balances:, accrued wages and taxes $=$ $$59,000,$ accounts payable $=$ $$48,000,$ accounts receivable $=$ $$94,000,$ cash and marketable securities $=$ $$95,000,$ inventory $=$ $$500,000,$ long$-$term debt $=$ $$450,000,$ net fixed assets $=1,300,000,$ and notes payable $=$ $$90,000.$

Calculate BTO's net working capital.