Required information [The following information applies to the questions displayed below.] Sedona Company set the following standard costs for one unit of its product for this year. The $6.80($4.60+$2.20) total overhead rate per direct labor hour (DLH) is based on a predicted activity level of 42,000 units, which is 75% of the factory's capacity of 56,000 units per month. The following monthly flexible budget information is available. During the current month, the company operated at 70% of capacity, direct labor of 371,000 hours were used, and the following actual overhead costs were incurred. AH= Actual Hours SH= Standard Hours AVR = Actual Variable Rate SVR = Standard Variable Rate 1. Compute the variable overhead spending and efficiency variances. 2. Compute the fixed overhead spending and volume variances. 3. Combute the controllable variance