Perpetual inventory using LIFO

Beginning inventory, purchases, and sales data for DVD players are as follows:

Nov. $1$ ?Inventory

$43$ ?units at $$69$

$10$ ?Sale

$30$ ?units

$15$ ?Purchase

$55$ ?units at $$72$

$20$ ?Sale

$30$ ?units

$24$ ?Sale

$9$ ?units

$30$ ?Purchase

$40$ ?units at $$76$

The business maintains a perpetual inventory system, costing by the last$-$in$,$ ?first$-$out method. column and LOWER unit cost first in the Inventory Unit Cost column.