In July, Econo Company purchased materials costing $18,400 and incurred direct labor costs of $72,000. Overhead totaled $32,700 for the month. Information on inventories was as follows: July 1 July 31

Materials $5,400 $5,200

Work in process $ 700 $1,200

Finished goods $3,100 $2,700

What was the cost of direct materials used in July? Note. Enter numbers only-- do not use a dollar sign ($) or comma.