Rogen Corporation manufactures a single product. The standard cost per unit of product is shown below. Direct materials-1 pound plastic at $6,00 per pound $6,00 Direct labor-0.5 hours at $11.90 per hour Variable manufacturing overhead Fixed manufacturing overhead 5.00 Total standard cost per unit $19.95 595 3.00 The predetermined manufacturing overhead rate is $16.00 per direct labor hour ($8.00 +0.5). It was computed from a master manufacturing overhead budget based on normal production of 2.600 direct labor hours (5,200 units) for the month. The master budget showed total variable costs of $15,600 ($6.00 per hour) and total fixed overhead costs of $26,000 ($10.00 per hour). Actual costs for October in producing 3.000 units were as follows Direct materials (3,190 pounds) $19,459 Direct labor (1,390 hours) 17.097 Variable overhead 18.238 Fixed overhead 7.562 Total manufacturing costs $62.356 The purchasing department buys the quantities of raw materials that are expected to be used in production each month. Raw materials inventories, therefore can be ignored. (a) Compute all of the materials and labor variances $ Unfavorable Total materials variance Materials price variance 5 1140 Unfavorabile Materials quantity variance $ 1659 Unfavorable Total tabor variance 5 556 Unfavorable 2 Labor price variance $ 1300 Favorable . Labor quantity variance $ 753 Favorable