How would I create a AJE for this $($especially considering the last part$)?$

$4.$ The Supplies Inventory account had a $$30,000$ balance at the beginning of the year $($January $1,2023).$ During the year, $$12,000$ of supplies were acquired, with the Supplies Expense account debited at the time of purchase. At the end of the year $($December $31,2023)$ Sparty had $$16,000$ of supplies still on hand but the Supplies Inventory account still had a balance of $$30,000.$