Six months ago, you purchased 1600 shares of DEF stock on margin at $20/share.The initial and maintenance margins are 55% and 30%, respectively.Your broker charges you a 4% annual interest rate on borrowed funds.You've received a $2 dividend per share over the course of your investment.DEF trades for $14/share today.Find your ROIC if you choose to close your margin position today.Round intermediate steps and your final answer to four decimals and enter your answer in decimal format (ex: .XXXX).