Office supplies at the beginning of 2021 total $980. On August 15, Wolverine purchases an additional $3,200 of office supplies, debiting the Supplies account. By the end of the year, $480 of office supplies remains. Record the adjusting entry for supplies at its year-end of December 31.

Closing supplies is $3,700

Explanation:

Given:

Opening balance of supplies = $980

Additional supplies purchased = $3,200

Closing office supplies = $480

Expenditure incurred on supplies = Opening supplies + additional supplies purchased - closing supplies

= 980 + 3200 - 480

= $3700

Adjusting journal entry to record expenditure on supplies:

31st December Supply expense A/c ... Dr $3,700

Supplies A/c $3,700

(To record supplies expense incurred)