How do I get day's cash on hand, debt ratio, and times interest earned? I don't just want answer but explanation of how I get it. Thanks.

Total Liabilities 3,050 3,587 3,955 4,167 4,434 Gross patient services revenues (non-GAAP) Less deductions from revenues (non-GAAP) Net patient service revenues Other operating revenues Total operating revenues 2016 8,870 17901 8,090 519 8,609 2017 9,490 1890) 8,600 633 9,233 2018 10,400 (1,000) 9,400 679 10,079 2019 11,200 (1,500) 9,700 717 10,417 2020 12,050 (1,600 10,450 980 11.430 4,113 700 3,000 700 600 4,300 7,350 3,285 700 600 4,585 8,172 3.221 700 600 4,521 8,476 3,678 700 600 4,978 9,145 600 5,413 9,847 Operating expenses Salaries and wages Supplies Utilities Insurance Depreciation Interest Bad debts Other operating expenses Total operating expenses 5.497 823 558 44 168 142 363 987 8,582 5.678 850 576 46 173 146 375 1,299 9,143 5,890 855 590 49 175 154 400 1,560 9,673 6,170 890 595 54 178 179 455 1,300 9,821 6.800 905 620 70 188 198 500 1,350 10.631 Net assets Unrestricted Temporarily restricted Permanently restricted Total Net Assets Total Liabilities and Net Assets Cash Flows from Operating Activities Cash received from patient and third-party payers Cash received from operating revenue sources Cash received from nonoperating revenue sources Cash payments to employees Cash payments to suppliers of goods and services Net cash flow from operating activities $ 10,671 800 270 (5,600) (4,800) $ 1,341 Operating income Nonoperating income Excess of revenue over expenses 27 154 181 90 195 285 406 245 651 596 220 816 799 290 1,089 $ $ $ S Cash flows from investing Activities Cash payments for purchase of plant assets Cash payments for purchase of long term investments Proceeds from sales of plant assets Proceeds from sale of long term investments Net cash flow from investing activities (1,200 (670) 90 60 $ 181 $ 285 $ 651 S 816 $ 1,089 (1,730) Change in net assets Unrestricted Temporarily restricted Permanently restricted Total change in net assets 181 285 651 816 1,099 Cash flows from Financing Activities Proceeds from issuance of 6% bonds payable Principal payments on long-term debt Cash payments to retire 7% bonds payable Net cash flow from financing activities Net increase/decrease in cash 4,000 (300) (3,200) 500 111 $ 2017 2019 2020 $ $ $ $ $ $ Current Assets Cash Receivables, net Inventory Prepaid expenses Total Current Assets 2016 280 30 1,340 140 40 1,830 124 45 1,536 175 32 1,912 2018 136 50 1,700 250 40 2,176 295 75 1,896 276 53 2,595 355 88 2,400 266 78 3,187 End of document Total Assets Short-term investments Plant and equipment Less accumulated depreciation Plants and equipment, net Total Assets 600 6,590 -1,660 4,920 7,350 1,010 6,780 -1750 5,030 7,952 1,200 6,900 -1,800 5,100 8,476 1,300 7,200 -1,950 5,250 9,145 1,510 7,500 -2,350 5,150 9,847 S $ $ $ $ Current liabilities Accounts payable Accrued expenses payable Deferred revenues Total Current liabilities Long term liabilities 370 220 60 650 2,400 302 208 77 587 3,000 356 212 87 655 3,300 370 210 87 667 3,500 375 215 94 684 3.750