Suzanne invests 4400 dollars in the Nguyen Mutual Fund on January 1. On March 1, her fund balance is 3400 dollars, and she invests an additional 700 dollars. On October 1, her fund balance is 8800 dollars, and she then withdraws 2500 dollars. On the following January 1, her fund balance is 6700 dollars. What is Suzanne's time-weighted rate of return?
Answer = percent.