Castle State Bank has the following financial information Balance Sheet Cash $100 Securities $600 Net Loans $1,200 Net Premises $300 Total Assets $2,200 Deposits $1,100 Non-Deposit Borrowings $800 Equity Capital $300 Total Liabilities and Equity $2,200 Income Statement Interest Income $400 Interest Expense ($150) Non-Interest Income $50 Non-Interest Expense ($100) Provision for Loan Losses ($60) Securities Gains (Losses) ($40) Taxes ($45) Net Income $55 Use this information to calculate Castle State Bank's ROE.