Dirk Ward borrowed $$14,000\mathrm{.}00$ for investment purposes on May $13$ on a demand note providing for a variable interest and payment of any accrued interest on December $31.$ He paid $$700$ on June $15,$$$100$ on September $6,$ $$500$ on November $13$ How much is the accrued interest on December $31$ if the rate of interest was $5\%$ on May $5\mathrm{.}3\%$ effective August $1,$ and $5\mathrm{.}6\%$ eflective November $1?$

The accrued interest on December $31$ is $

$($Round the final answer to the nearest cent as needed Round all intermediate values to $5x$ decimal places as needed.$)$