LVN Corporation's direct labor costs and related information for the month of June were as follows: 500 Actual total direct labor-hours 1000 Standard total direct labor-hours Total direct labor cost $16,500 Unfavorable direct labor rate (rate) variance $600 What is LVN Corporation's direct labor efficiency variance? $ 16,500 unfavorable $7950 unfavorable $7950 favorable $16,500 favorable