Compute the amount of raw materials used during August if $22,000 of raw materials were purchased during the month and the inventories were as follows:

Inventories	Balance August 1	Balance August 31
Raw materials	$2,900	$4,000
Work in process	$12,000	$15,000
Finished goods	$19,000	$11,000

$28,900

$19,000

$15,000

$20,900