Vulcan produces a single product with the following standard prices and quantities: Direct materials, 20 meters at $0.90 per meter Direct labor, 4 hours at $6 per hour Variable manufacturing overhead, 4 hours at $3.75 per DLH Fixed manufacturing overhead, 4 hours at $1.25 per DLH Total standard cost per unit of output Per unit $18 24 15 5 $62 The standards have been computed based on a denominator level of activity of 2,400 direct labor hours allocation base for overhead costs is direct labor hours. The actual activity for the past month was as follows. Materials purchased Materials used Direct labor Variable manufacturing overhead 18,000 meters at $0.92 per meter 9,500 meters 2,100 hours at $6.10 per hour $8,300 $2,700 per month. The Fixed manufacturing overhead Production Required: 500 units Compute all price variances, spending variances, efficiency variances that can be computed, and the production volume variance