what is ROE and susstainable growth rate ?

Financial Forecast 1516 COMPUTERFIELD CORPORATION Financial Statements Income Statement Projected 2018 2017 End Assets $500 Balance Sheet 2018 End projected Debt 2017 End $250 2018 End projected Sales Costs Taxable income Taxes (20%) Net income 2017 $1,000 800 200 40 $160 Equity $250 Total $500 Total $50 Sales grow by 20% Every item increases by 20% Do the numbers add up? How to reconcile? 2