Kartman Corporation makes a product with the following standard costs: Standard Quantity or HoursStandard Price or RateStandard Cost Per Unit Direct materials 6.5pounds$7.00per pound$45.50 Direct labor 0.6hours$24.00per hour$14.40 Variable overhead 0.6hours$4.00per hour$2.40 In June the company's budgeted production was 3,400 units but the actual production was 3,500 units. The company used 22,150 pounds of the direct material and 2,290 direct labor-hours to produce this output. During the month, the company purchased 25,400 pounds of the direct material at a cost of $170,180. The actual direct labor cost was $57,021 and the actual variable overhead cost was $8,931. The company applies variable overhead on the basis of direct labor-hours. The direct materials purchases variance is computed when the materials are purchased. The labor efficiency variance for June is: