Calculate free cash flow for 2021 for Monarch Textiles, Incorporated, based on the financial information that follows. Assume that all current liabilities are non-interest-bearing liabilities and that no fixed assets were sold or disposed of during 2021. Monarch Textiles, Incorporated ($ thousands) Income statement Selected balance sheet items 2021 2020 2021 Sales 1,490 Current assets 430 595 Cost of sales 778 Net fixed assets 152 304 Operating expenses 126 Current liabilities 265 345 Depreciation 76 Interest expense 50 Earnings before taxes 460 Tax 184 Net income 276