Answer:
$100
Explanation:
Of the beginning balance on the supplies account was $1,000 and purchase of supplies of $500, it would have given a balance of $1,500 in the supplies account during the day for the business. The amount that was used from supplies at end of day is $1,400.
So balance at end of day is 1,500- 1,400= $100.
Alternatively we can use the following formula
Closing balance= Opening balance+ Inflows - Outflows
Closing balance= 1,000+ 500 - 1,400
Closing balance= $100