Holleyman Industries is a leading manufacturer of golf balls. Each golf ball requires 1 minute of direct labor time to complete. Holleyman used 7,200 direct labor hours in July to produce 420,000 golf balls. Holleyman's standard labor rate is $9 per direct labor hour, and the actual labor rate in July was $8.75. Calculate Holleyman's direct labor efficiency variance for July. (If variance is zero, select "Not Applicable" and enter o for the amounts.) Direct labor efficiency variance $