Following is select information for Park Company: 2020 Income Statement Sales revenue $3,640 Interest expense (100) Income tax expense (160) December 31, 2019 December 31, Balance Sheet 2020 Interest payable $ 40 $ 40 Income taxes payable 30 30 280 Deferred income tax liabilities 200 Operating cash flows for 2020 were $800. The 2020 interest coverage ratio (cash flow basis) is