I need help creating a cash flow statement using the following information:

Balance Sheet	2020	2019		2020	2019		Income Statement	2020
Assets:			Liabilities and Equity:				Sales	$1,753
Cash	$163	$154	Accounts Payable	$266	$100		COGS	$900
Accounts Receivable	$550	$455	Accruals	$150	$150		Depreciation	$90
Inventory	$569	$450	Total Current	$416	$250		Operating Income	$763
Total Current	$1,282	$1,059
			Long-Term Debt	$296	$350		Interest Expense	$82
Net Fixed Assets	$1,739	$1,400	Total Liabilities	$712	$600		Pretax Income	$681
Total Assets	$3,021	$2,459
			Common @ par	$55	$45		Taxes	$212
			Capital Surplus	$585	$494		Net Income	$469
			Retained Earnings	$1,729	$1,370
			Treasury Stock	($60)	($50)		Dividends	$110
			Total Equity	$2,309	$1,859		Addition to R.E.	$359
			Total Liabilities and Equity	$3,021	$2,459

This is what I've completed so far but I am not understanding where I am wrong:

Cash Flow Statement
Operations:
	Net Income		469
	Depreciation		90
	Taxes		212
	Changes in Assets and Liabilities
		Accounts Receivable	-95
		Inventories	-119
		Accounts Payable	166
		Accrued Expenses	0
Total Cash Flow from Operations			$723
Investing Activities:
	Change in Fixed Assets		-429
Total Cash Flow from Investing Activities:			($429)
Financing Activities:
	Retirement of Debt		(54)
	Dividends		110
	Repurchase of Stock		(10)
	Proceeds from New Stock Issue		101
Total Cash Flow from Financing:			$147
Change in Cash:			$441

Thank you for your help.