Paulson Corporation manufactures tablecloths, which is its only product. The standards for tablecloths are as follows:

Standard direct materials cost per metre	$11
Standard direct materials quantity per tablecloth (metres)	2
Standard direct labour cost per hour	$15
Standard direct labour hours per tablecloth	0.5

During the month of September, the company produced 1,000 tablecloths. Related production data for the month follows:

Actual metres of direct material purchased and used	2,200
Actual direct materials total cost	$22,900
Actual direct labour hours	2,100
Actual direct labour cost incurred	$17,850

What is Paulson Corporation's direct labour efficiency variance for the month?