(1 point) Wendel invests 5400 dollars in a mutual fund on January 1. On June 1, his fund balance is 3200 dollars. Wendel notices the decline, and withdraws 1500 dollars. On September 1, his fund balance is 8400 dollars, and he then invests an additional 1200 dollars. On the following January 1, his fund balance is 7200 dollars. What is Wendel's time-weighted rate of return? Answer = percent