During 2011, actual number of units produced and sold was 5,500. Actual cost of direct materials used was $668,800, based on 70,400 pounds purchased at $9.50 per pound. Direct manufacturing labor-hours actually used were 18,500, at the rate of $51.50 per hour. As a result, actual direct manufacturing labor costs were $952,750. Actual fixed costs were $1,180,000. There were no beginning or ending inventories. Required 1. Calculate the sales-volume variance and flexible-budget variance for operating income. 2. Compute price and efficiency variances for direct materials and direct manufacturing labor