Marquis Company uses a weighted$-$average perpetual inventory system and has the following purchases and sale

$\backslash$table$[[$Date$,$Activities,Units Acquired at cost$,$Units sold at Retail$],[$August $2,$Purchase,$10$ units@ $$42=$$$420,],[$August $18,$Purchase,$15$ units @ $$44=$$$660,12$ units sold$],[$August $29,$Sales,,$]]$

$00$:$35$:$20$

What is the amount of the cost of goods sold for this sale? $($Round average cost per unit to $2$ decimal places.$)$

Multiple Choice

$$1,080\mathrm{.}00$