Vaughn Inc., which produces a single product, has prepared the following standard cost sheet for one unit of the product. Direct materials (6 pounds at $1.80 per pound) $10.80 Direct labor (4 hours at $13.00 per hour) $52.00 During the month of April, the company manufactures 170 units and incurs the following actual costs. Direct materials purchased and used (1,900 pounds) $3,610 Direct labor (720 hours) $9,288 Compute the total, price, and quantity variances for materials and labor