Dirk Ward borrowed $14,000.00 for investment purposes on May 3 on a demand note providing for a variable rate of interest and payment of any accrued interest on December 31. He paid $700 on June 27, $200 on September 11, and $600 on November 12. How much is the accrued interest on December 31 if the rate of interest was 8% on May 3, 8.4% effective August 1, and 8.7% effective November 1?

Round the final answer to the nearest cent as needed. Round all intermediate values to six decimal places as needed