Using the table, what is the average daily balance of the credit card for the January $1-$ January $31$ billing period? Round your answer to the nearest cent. Do not include a dollar sign or comma in your answer. For example, $$5,678\mathrm{.}00$ should be entered as $5678\mathrm{.}00.$

$\backslash$table$[[$Day$,$Activity,Adjustment,Closing Balance$],[1,-,-,800],[11,$Purchase,$+200,1000],[21,$Purchase,$+250,1250],[31,$Purchase,$+400,1650]]$