Sak Company disclosed the following liability account balances on December 31, 2020: Accounts payable = $1,900; Bonds payable = $3,400; Premium on bonds payable = $200; Deferred tax liability = $400; Dividends payable =$500; Income tax payable = $900; Note payable, due January 31, 2021 = $600. On December 31, 2020, what total amount should be reported as current liabilities?