Using the information below, I am trying to calculate the following:

a. The Year over year change in net working capital

b. Net Capital Spending for 2019

c. Cash Flow from Assets for 2019

d. Cash Flow from investing activities as it would appear on the Statement of Cash Flows for 2019

Not sure what I am doing wrong but I keep getting incorrect answers!

Income Statement FY2019 FY2018 FY2019 Sales 3,071,951,000 Cash and Cash Equivalents 114,656,000 36,884,000 Cost of Revenue 2,529,281,000 Inventories 156,253,000 154,958,000 Selling, General, and Admin. 152,826,000 Accounts Receivables 19,496,000 32,206,000 Depreciation 107,000,000 Other Current Assets 16,347,000 18,332,000 EBIT 282,844,000 Total Current Assets 306,752,000 242,380,000 Interest 16,488,000 Net Property, Plant and Equipment 1,220,603,000 1,338,845,000 EBT 266,356,000 Total Assets 1,527,355,000 1,581,225,000 Taxes 42,955,000 Net Income 223,401,000 Accounts Payable 190,518,000 202,561,000 Addition to Retained Earnings 17,245,000 Provisions for Employee Entitlements 85,978,000 92,806,000 Dividends 206,156,000 Deferred Customer Advances 76,292,000 81,734,000 Other Current Liabilities 11,831,000 15,373,000 Shares Outstanding 24,011,550 Total Current Liabilities 364,619,000 392,474,000 Long-term Debt 580,955,000 584,041,000 Total Liabilities 945,574,000 976,515,000 Common Stock 44,289,000 49,973,000 Accumulated Retained Earnings 537,492,000 554,737,000 Total Shareholder Equity 581,781,000 604,710,000 Total L and E 1,527,355,000 1,581,225,000