Perpetual inventory using FIFO

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

Date Line Item Description Units and Cost

Nov. $1$ Inventory $55$ units at $$45$

$10$ Sale $44$ units

$15$ Purchase $32$ units at $$48$

$20$ Sale $20$ units

$24$ Sale $12$ units

$30$ Purchase $36$ units at $$50$

The business maintains a perpetual inventory system, costing by the first$-$in$,$ first$-$out method.