A corporation has the following account balances on September 30, 2015: Cash $1,500, Accounts Receivable $5,200, Unused Supplies $200, Advertising Expense $450, Wages Expense $2,200, Service Revenue $4,500, Accounts Payable $2,500, Share Capital $1,500, Retained Earnings $1,690, Dividends paid $1,000. What is the ending balance of income summary?