Answer:
$500
Step-by-step explanation:
Supplies account is a current asset and has a normal debt balance. It is shown on the assets side of the balance sheet under the sub-head 'current assets'.
Given,
Opening balance = $200
Purchased supplies = $800
Supplies used = $500
Closing balance = Opening balance + Purchased supplies - Supplies used
Closing balance = $200 + $800 - $500
Closing balance = $500