In July, Econo Company purchased materials costing $21,000 and incurred direct labour cost of $18,000. Manufacturing overhead totalled $32,000 for the month. Information on inventories was as follows:

	July 1	July 31
Materials	$6,200	$7,100
Work-in-process	$ 700	$1,200
Finished goods	$3,300	$2,700

What was the cost of direct materials used in July?