Your balance at time 0 is $2,000. At time t = 1 3 ; the balance has grown to $2,500 and a contribution of $1,000 is made. At time t = 2 3 ; the balance has dropped to $3,000 and a withdrawal of $1,500 is made. At the end of the year, the fund balance is $2,000. What is the (TWRR) time-weighted rate of return?