A company's pension plan fund had a balance of $500,000 on January 1, 2019 and $650,000 on December 31, 2019. There were deposits of $50,000 from members' contributions on each of March 1, 2019 and August 1, 2019. There were withdrawals due to retirements of $20,000 at the end of June and $25,000 at the end of November. Calculate the approximate dollar weighted rate of return for the year. You can count partial parts of the year in months. (Answer to 4 decimal places/a percent to 2 decimal places. Please solve without using excel or financial calculator)