4 Standard Costing Omaha Manufacturing, which produces a single product, has prepared the following standard costs for one unit of the product. Direct materials 10 pounds per unit $ 2 per pound $ 20 per unit Direct labor 2 hours per unit $ 15 per hour $ 30 per unit During the month of April, the company manufactures 300 units and incurs the following actual costs. Direct materials purchased and used 3,100 pounds $5,580 DM cost Direct labor 590 hours $9,440 DL cost Instructions Compute the total, price, and quantity variances for labor.