What is the ROE?

Balance Sheet 2018 Current Assets Cash Accounts Receivable Inventory Prepaid Expenses Total Current Assets Fixed Assets Total Assets 2500 7350 9200 3300 22350 68500 90850 Current Liabilities Accounts Payable Notes Payable Total Current Liabilities Bonds Payable Total Liabilities Common Stock Retained Earnings Total Liab and Equity 5500 7300 12800 0 12800 31500 46550 90850 Statement of Cash Flows Net Income Depreciation Expense Change in Accounts Receivable Change in Inventory Prepaid Expenses Change in Accounts Payable Notes Payable 28000 8000 +500 -2000 +450