Dapper Corporation had only one job in process on May 1. The job had been charged with $1,250 of direct materials, $4,220 of direct labor, and $5,950 of manufacturing overhead cost. The company assigns overhead cost to jobs using the predetermined overhead rate of $20.50 per direct labor-hour. During May, the following activity was recorded:

Raw materials (all direct materials):
Beginning balance	$ 13,200
Purchased during the month	$20,200
Used in production	$31,200
Labor:
Direct labor-hours worked during the month	2,290
Direct labor cost incurred	$28,625
Actual manufacturing overhead costs incurred	$39,400
Inventories:
Raw materials, May 30	?
Work in process, May 30	$16,400

Work in process inventory on May 30 contains $2,750 of direct labor cost. Raw materials consist solely of items that are classified as direct materials.

The balance in the raw materials inventory account on May 30 was:

$2,320

$2,720

$2,200

$2,080