Rogen Corporation manufactures a single product. The standard cost per unit of product is shown below. The predetermined manufacturing overhead rate was computed from a master manufacturing overhead budget based on normal production of 8,000 direct labor hours ( 5,000 units) for the month. Actual costs for October in producing 4,900 units were as follows. 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. Instructions: Data 1. Compute the price and quantity variances for direct materials. 2. Compute the rate and efficiency variances for direct labor. 3. Compute the variable overhead spending and efficiency variances. 4. Compute the fixed overhead budget and volume variances