Priority Company, which applies overhead to production on the basis of machine hours, reported the following data for the period just ended: Actual units produced: 9,000 Actual variable overhead incurred: $54,400 Actual machine hours worked: 16,000 Standard variable overhead cost per machine hour: $3.50 If Priority estimates two hours to manufacture a completed unit, the company's variable-overhead efficiency variance is: Multiple Choice None of the answers is correct. $1,600 unfavorable. $7,000 favorable. $7,000 unfavorable. $1,600 favorable.