Last year Miami Rivet had $5 million in operating income (EBIT). Its depreciation expense was $1 million, its interest expense was $1 million, and its corporate tax rate was 25%. At year-end, it had $14 million in operating current assets, $3 million in accounts payable, $1 million in accruals, $2 million in notes payable, and $15 million in net plant and equipment. Assume Miami Rivet has no excess cash. Miami Rivet uses only debt and common equity to fund its operations. (In other words, Miami Rivet has no preferred stock on its balance sheet.) Miami Rivet had no other current liabilities. Assume that Miami Rivet only noncash item was depreciation. Based on this information answer the following questions:

What was its net operating working capital (NOWC)?