a$)$ Fill in the missing numbers in the inventory schedule using the first in$,$ first out $($FIFO$)$ inventory valuation method for the month. This company uses the perpetual inventory system.

Do not enter dollar signs or commas in the input boxes.

Round all answers to $2$ decimal places.

For transactions $4$ and $5,$ always put the previously$\_$purchased items in the first row and put the newly$\_$purchased items in the second row.

$\backslash$table$[[$Inventory Schedule$],[,,$Purchases,Sales,Balance$],[$Transaction$,$Description,Quantity,Amount,Quantity,Amount,Quantity,Amount$],[,$Opening Balance,,,,,$0,$$ $0],[$#$1,$Purchase from CDE Co$.,290,$$$2,900\mathrm{.}00,,$$$,,],[$#$2,$Sale to QRS Co$.,,,,$$$,100,$$$1,000\mathrm{.}00$